66 results about "Primary energy" patented technology

A device, method, and non-transitory computer readable medium for controlling a power distribution system includes an islanded microgrid and a control system. The islanded microgrid includes battery energy storage systems (BESSs) that operate as a primary energy source, and a decentralized consensus-based virtual synchronous generator (VSG). The control system simultaneously, emulates inertial response of a synchronous generator by the virtual synchronous generator during grid disruptions to regulate and stabilizes frequency of the islanded microgrid, and maintain consensus among the plurality of battery energy storage systems (BESSs).

The utility model provides a micro electric energy collection circuit. The rectification unit is responsible for converting the alternating current output of the piezoelectric collector into a pulsating direct current signal; the synchronous charge extraction unit comprises a self-powered peak detection circuit and a synchronous switch controller and is responsible for efficiently transferring charges from a piezoelectric element to an electric quantity extraction inductor; the secondary electric energy storage unit comprises a primary electric energy storage device, a detection switch, a charging circuit, a secondary electric energy storage device and a voltage stabilization output circuit, input and output of each functional module are sequentially connected in series, and electric energy flows in a one-way mode; the absorption circuit is responsible for absorbing the electric energy in the inductor extracted by the circuit and effectively storing and stably outputting the electric energy; all the functional units are sequentially connected in series, and electric energy flows from the rectifying unit to the voltage stabilizing output circuit of the secondary storage unit in a one-way mode. The input end of the rectification unit is connected with the output end of the micro-electric energy collector, and the output end of the secondary storage unit is connected with the low-power-consumption internet-of-things sensor load. According to the utility model, intermittent weak AC electric signal energy from piezoelectric elements can be efficiently captured, and the intermittent weak AC electric signal energy can be adjusted to a stable output voltage of the Internet of Things sensor through secondary storage.

The invention provides a high-temperature steam system and method based on waste heat recovery and vinasse recycling, belongs to the technical field of steam systems, and can solve the problems that when an existing steam system is applied to the brewing industry, a large amount of primary energy needs to be consumed, and brewing by-products are not sufficiently utilized. According to the technical scheme, the waste heat recovery assembly comprises a heat exchanger, a high-temperature heat pump unit, a heat storage tank, a high-temperature steam heat pump unit and a condensate water tank; the vinasse recycling assembly comprises a biogas steam boiler, a double-membrane gas holder and an anaerobic bioreactor. According to the system, industrial by-products of a brewing factory can be comprehensively recycled, high-temperature steam required by a boiling process of the brewing factory is provided while secondary steam generated by a boiling pot, low-grade waste heat of the factory and brewing waste are recycled, and the energy utilization efficiency of the system is improved; a novel high-efficiency, low-carbon and energy-saving high-temperature steam system is provided for a brewing factory.

The invention discloses a heat pump system and a waste heat recovery method, and belongs to the technical field of heat pump waste heat recovery, the heat pump system is used for recovering waste heat of a waste heat source, the waste heat source comprises a water outlet pipe and a water inlet pipe, and the heat pump system comprises a first-stage heat exchange unit, a second-stage heat exchange unit and a cold using end assembly; the first-stage heat exchange unit comprises a first condensation assembly and a first evaporation assembly, and a heating side channel of the first condensation assembly is connected with the water outlet pipe and used for receiving waste heat and heating water into high-temperature water. A cooling side channel of the first evaporation assembly is used for introducing normal-temperature water and outputting low-temperature water after the normal-temperature water is cooled; the second-stage heat exchange unit comprises a second condensation assembly and a second evaporation assembly. The two ends of a heating side channel of the second condensation assembly communicate with a cooling side channel of the first evaporation assembly and the water inlet pipe correspondingly. And the cold end assembly is in heat exchange connection with the second evaporation assembly. Waste heat can be converted into high-grade heat energy and cold energy at the same time, consumption of primary energy is reduced, and the energy utilization efficiency is improved.

The application discloses a marine Stirling ultra-low-temperature primary energy-saving refrigerating system and relates to the technical field of energy-saving heat exchange equipment. The upper part of the base is respectively provided with a refrigerating machine main body, a heat dissipation device, a control system cabinet, a plate heat exchanger and a gas-liquid separator. The ship waste heat is used as a heat driving source, enters the inside of the first shell through a second cooler and a second heat exchange cavity, the crankshaft rotates, the rotary motion is converted into the reciprocating linear motion of a piston assembly, the gear is linked with the crankshaft to coordinate the motion of multiple pistons, a supporting partition plate separates the compression cavity from the expansion cavity, a heat recovery cycle is completed by taking helium as a working medium, the piston assembly reciprocates in a piston motion cavity, the working medium in the compression cavity is compressed, enters the heat exchanger installation cavity through a working medium pipeline and a heat exchange cavity, exchanges heat with a heat exchanger core to reduce temperature, then enters the expansion cavity to expand and work to refrigerate (absorb the heat of the low-temperature cabin of the ship), the expanded working medium flows through the heat exchanger to absorb heat and increase temperature again, and returns to the compression cavity to complete the cycle.

The invention discloses a multi-source synergistic hydrogen energy and coal chemical industry coupling method based on carbon-based solid waste, and belongs to the cross technical field of hydrogen energy and coal chemical industry, the scheme is as follows: coal chemical industry carbon-based solid waste is combusted to generate power, coal chemical industry waste heat is utilized to generate power, and coal chemical industry secondary energy is formed; new energy power generation and coal chemical secondary energy power generation are coordinated to form an island micro-grid, so that the power demand of hydrogen production by electrolysis of water is met; when the new energy is insufficient in power supply, the coal chemical secondary energy is used for maintaining 20% low-load operation of the electrolytic bath; hydrogen generated in the hydrogen production electrolytic cell is sent to the coal chemical industry; and oxygen generated in the hydrogen production electrolytic cell is sent to oxygen-enriched combustion. The coal chemical secondary energy is used as the bottom energy, the defect that attenuation of an electrolytic cell is accelerated due to frequent starting and stopping of the electrolytic cell caused by the fact that new energy is used as intermittent energy is overcome, the problem that hydrogen production cost is high due to hydrogen production, energy storage or hydrogen power generation through water electrolysis of primary energy is solved, and meanwhile a new absorption path is provided for carbon-based solid waste discharged by the coal chemical industry.

This utility model relates to the field of waste heat recovery technology for desulfurization slurry, and more particularly to a waste heat recovery system for boiler flue gas desulfurization slurry based on flash evaporation. The system includes a flue gas desulfurization tower, a flash tank, a steam-water heat exchanger, a boiler air heater, and a condensate tank. The bottom first slurry outlet of the flue gas desulfurization tower is connected to the upper slurry circulation inlet, and the bottom second slurry outlet is connected to the flash tank. The flash tank converts the water in the desulfurization slurry into steam through flash evaporation. The steam outlet of the flash tank sends the steam to the steam-water heat exchanger through a steam pipeline. The liquid outlet of the flash tank is connected to the liquid inlet of the flue gas desulfurization tower. The steam-water heat exchanger is connected to the boiler air heater, and the condensate outlet of the steam-water heat exchanger is connected to the condensate tank. This utility model achieves waste heat utilization of the desulfurization slurry through flash evaporation, reducing the final flue gas temperature of the boiler and improving the primary energy conversion efficiency of the boiler.

This invention relates to the field of carbon emission forecasting technology, providing a carbon emission forecasting method, system, computer equipment, and storage medium. The method includes: decomposing the industrial-specific final energy consumption data from the overall industry-specific final energy consumption data based on historical annual industrial end-product energy consumption data by category and type; predicting and analyzing this data to obtain the target year's overall industry-specific final energy consumption forecast data; and calculating the primary energy consumption forecast data based on the target year's overall industry-specific final energy consumption forecast data using power generation ratio prediction data obtained from historical annual electricity data evolution analysis, thereby obtaining the predicted value of regional energy consumption carbon emissions. This invention can capture the natural laws governing the impact of energy structure adjustment, technology diffusion, and resource constraints on energy demand and carbon emissions, improving the reliability and accuracy of regional energy carbon emission forecasting.

The primary energy sources for low / zero carbon intensity (green) hydrogen production, such as sunlight and wind, are inherently intermittent in duration and variable in strength. An integrated, dynamically controlled production process is needed for the optimization of continuous green hydrogen production. The process needs to manage this dynamic state on a frequent basis within a green hydrogen production process to assess impacts from incoming renewable energy through to the outgoing continuous (e.g., 24 hours per day and up to 365 days per year) production of both gaseous and liquid hydrogen. The process needs to manage operational performance and metrics continuously using the production facility configuration, renewable energy supply profiles and operational safety requirements together with the capability to adapt to a variety of external constraints, including weather variation, water supply variation and offtake requirements.

This invention discloses a natural gas air source absorption heat pump system, relating to the field of gas heat pump technology. It includes an integrated multi-layer composite heat exchanger, an evaporator, a gas valve, a solution circulation pump, a concentration regulating valve, an air-side fan, an online working fluid concentration regulating system, and a composite controller. By setting up the integrated multi-layer composite heat exchanger, the high-temperature flue gas channel, the generator solution channel, the distillation and absorption composite channel, and the air preheating channel are arranged sequentially from the inside out, forming a counter-current coupled heat exchange structure of flue gas, solution, and air. This allows the waste heat from the high-temperature flue gas generated by gas combustion, the absorption heat released by the absorber, and the condensation heat released by the condenser to be naturally transferred from high to low grade within the same composite heat exchanger. The absorption heat is then transferred in situ to the air intake of the outer preheating evaporator, thereby achieving multi-stage coupled utilization of thermal energy and significantly improving the primary energy utilization rate of the heat pump system.

A technique facilitates reliable operation of a blowout preventer (BOP) system in a wide range of challenging environments. The BOP system is an electrical system comprising electrically powered components. The electrically powered components are connected with a primary energy storage device which provides electric power for operating those components. Additionally, a secondary energy storage device may be connected to the primary energy storage device in a manner so as to maintain a desired level of charge on the primary energy storage device. The secondary energy storage device has a longer lifespan and a lower discharge rate compared to the primary energy storage device. By way of example, the secondary energy storage device may be in the form of a secondary battery which is nuclear powered.

The primary energy sources for low / zero carbon intensity (green) hydrogen production, such as sunlight and wind, are inherently intermittent in duration and variable in strength. An integrated, dynamically controlled production process is needed for the optimization of continuous green hydrogen production. The process needs to manage this dynamic state on a frequent basis within a green hydrogen production process to assess impacts from incoming renewable energy through to the outgoing continuous (e.g., 24 hours per day and up to 365 days per year) production of both gaseous and liquid hydrogen. The process needs to manage operational performance and metrics continuously using the production facility configuration, renewable energy supply profiles and operational safety requirements together with the capability to adapt to a variety of external constraints, including weather variation, water supply variation and offtake requirements.

The invention relates to a green electricity-hydrogen-methanol integrated comprehensive energy system and an optimal scheduling method thereof, and belongs to the technical field of comprehensive energy system optimization. Wind power / photovoltaic power serves as primary energy, green power-green hydrogen bidirectional conversion is achieved through a hydrogen energy storage unit (comprising an electrolytic bath, a compressor, a hydrogen storage tank and a hydrogen fuel cell), and a carbon closed loop path is formed in cooperation with an electric methanol preparation unit (coupling a carbon capture device and a methanol synthesis reactor); designing a day-ahead scheduling optimization model based on multi-market interaction, and integrating equipment operation constraint, multi-energy flow balance and market transaction mechanisms with the purpose of minimizing the total operation cost; according to the optimal scheduling method of the green electricity-hydrogen-methanol integrated comprehensive energy system provided by the invention, a day-ahead scheduling decision for minimizing the operation cost is provided, and dynamic collaborative optimization of electricity-hydrogen-methanol multi-energy flow and efficient cyclic utilization of carbon resources are realized.

The utility model discloses a multi-path ore pulp distribution box, which relates to the technical field of ore pulp distribution devices, and comprises a first barrel and a second barrel, a primary energy dissipation groove is formed in the first barrel, a plurality of overflow ports with the same overflow height are arranged on the side surface of the first barrel, a secondary energy dissipation groove is formed in the second barrel, and the overflow ports are communicated with the secondary energy dissipation groove. The first barrel is arranged in the middle of the interior of the second-stage energy dissipation groove, a plurality of separation structures are arranged between the first barrel and the second barrel, so that the interior of the second barrel is divided into a plurality of ore separation spaces, the ore separation spaces correspond to the overflow ports correspondingly, the second barrel is provided with third barrels in the ore separation spaces correspondingly, and the third barrels are arranged in the ore separation spaces correspondingly. The third barrel body is provided with an ore discharging flow channel so that ore pulp in the ore separation space can be discharged, the overflow height of the overflow opening is larger than the groove bottom of the second-stage energy dissipation groove so that a first buffer space can be formed in the first-stage energy dissipation groove, follow-up even ore separation of classification equipment is achieved, and the problem that ore pulp is difficult to evenly distribute is solved.

The application relates to the field of high-speed train high-voltage system equipment, in particular to a voltage transformer for a high-speed train high-voltage system, which comprises a supporting plate, a fixed plate, a supporting elastic piece and an energy dissipation plate. The supporting elastic piece is used for primary energy dissipation of a voltage transformer body, the energy dissipation plate is used for secondary energy dissipation of the voltage transformer body, and the energy dissipation plate is easy to reset under the influence of gravity, so that the voltage transformer body is more likely to keep good stability during high-speed train bumping, thereby realizing the effect of efficiently buffering and dissipating the voltage transformer, and prolonging the operation life of the high-speed train roof voltage transformer.

This invention relates to the field of motor drive and frequency conversion control technology, specifically to an intelligent frequency conversion control system for a first-level energy-efficient three-phase asynchronous motor. The system includes: a data acquisition module for acquiring three-phase voltage data, three-phase current data, and speed feedback data output from the frequency converter; an electromechanical feature identification module for performing harmonic analysis based on the three-phase current data and identifying mechanical inertia data, transmission clearance data, and the system's current resonant frequency data; a fatigue risk quantification module for calculating mechanical fatigue penalty integral data in conjunction with subsequent speed and voltage adjustment commands; a joint optimization control module for optimizing a comprehensive objective function including energy consumption and mechanical fatigue indicators; an active damping execution module for generating active damping compensation current data; and an output feedback module for outputting a flexible frequency conversion drive pulse width modulation signal and generating an electromechanical system health assessment report. This invention achieves a joint balance between energy consumption, mechanical fatigue, and operational stability.

The invention discloses a rule-driven rural multi-energy complementary distributed energy technology coupling optimization method, which comprises the following steps of performing quantitative evaluation on rural localized primary energy endowment and terminal multi-element energy demand characteristics, and generating standardized resource endowment data and energy demand data; constructing a rule engine based on a forward chain reasoning generative system and a hierarchical rule, inputting resource endowment data and energy consumption demand data into the rule engine, and generating a multi-energy complementary preliminary technology coupling scheme; and verifying the feasibility of the preliminary technical coupling scheme, and outputting a final technical coupling scheme and an analysis result. The method has the beneficial effects that in a rural energy system planning stage, based on rural polymorphic resource endowment and energy consumption requirements, a coupling suggestion scheme of a multi-category distributed energy technology is output through an intelligent rule engine, automatic generation of a technology coupling scheme is realized, the planning efficiency is remarkably improved, and carbon emission and energy consumption cost are reduced.

• National energy supply system comprising several G-Dual power plants operating on glycerin as the main fuel and a pilot fuel, with each power plant providing an electrical output of 5 to 200 MW and feeding into a national high-voltage grid (110-380 kV).

The invention discloses a distributed energy system of a coupling concentrating solar energy driven carbonaceous particle gasification and SOFC-MGT hybrid power generation device. Comprising a concentrating solar heat storage system, a carbonaceous particle gasification system, a high-temperature purification system, a synthesis gas storage system, a solid oxide fuel cell-gas turbine hybrid power generation system and an organic Rankine cycle power generation system. The concentrating solar heat storage system is used for providing heat for the carbonaceous particle gasification system and providing raw materials for circular reaction of the carbonaceous particle gasification system; the carbonaceous particle gasification system drives carbonaceous particles to be gasified; the high-temperature purification system is a primary energy storage device and is used for storing surplus heat in the daytime; a secondary energy storage device of the synthesis gas storage system is a synthesis gas storage tank and is used for meeting continuous operation in cloudy and rainy days and winter; the solid oxide fuel cell-gas turbine hybrid power generation system is a primary power generation device; the organic Rankine cycle power generation system is a two-stage power generation device, and the power generation efficiency of the system is fully improved.

The application relates to the field of air conditioner energy-saving technology, and particularly relates to an air conditioner outdoor unit wind energy recovery power generation device, which comprises an air conditioner outdoor unit body, a mounting shell, a wind energy capturing mechanism, a generator and an electric energy management module. The air conditioner outdoor unit body is arranged in the mounting shell. The wind energy capturing mechanism is arranged at an air outlet of the mounting shell and is used for capturing wind energy carried by the discharged airflow and converting the wind energy into mechanical energy. The generator is in transmission connection with the wind energy capturing mechanism and is used for converting the mechanical energy into electric energy. The electric energy management module is connected with a power output end of the generator and is used for rectifying, regulating voltage and storing the electric energy. The device utilizes the waste heat airflow kinetic energy generated during air conditioner operation, does not need to consume primary energy additionally, can generate electric energy, and thus improves energy utilization.

The invention discloses a low-power-consumption wireless inclination angle monitoring system cooperatively powered by a battery, and belongs to the technical field of engineering monitoring. Comprising a solar photovoltaic panel, a top cover, a shell, a base, a core control panel (embedded into a sub-microamp sleep operation circuit module), a solar charging and discharging module, an inclination angle sensing module and a wireless communication module. The circuit has the advantages that 1) the standby current of the sub-microampere sleep operation circuit module is less than 1 microampere, and low power consumption is controlled through a clock and is far better than that of a traditional low-power-consumption MCU (Microprogrammed Control Unit) low-power-consumption scheme; the method comprises the steps of (1) establishing a solar energy-lithium battery cooperative power supply, embedding a solar photovoltaic panel into a top cover to supply energy, and using a lithium battery as a main power supply source, (3) supporting an edge calculation and lightweight threshold early warning model, realizing model optimization through OTA and realizing full-scene coverage of set period monitoring, encryption monitoring and the like, and (4) adopting an integral waterproof structure and a support-free design to adapt to field rapid deployment.

This invention belongs to the field of energy demand forecasting technology, and discloses a method and system for forecasting regional energy system demand. The method includes: determining the primary energy demand of each industry in a target region; constructing a calculation model for carbon emissions and energy utilization costs in the target region based on the primary energy demand of each industry, carbon emission coefficients of various primary energy sources, and utilization cost coefficients of various energy sources; constructing an optimization function based on determined energy utilization constraints and carbon emission constraints; solving the optimization function to obtain the optimal solution; and obtaining energy consumption, carbon emissions, and energy cost data for all industries in the target region based on the optimal solution, the target region carbon emission calculation model, and the energy utilization cost calculation model. This invention constructs an optimization function based on energy utilization constraints and carbon emission constraints, with the optimization objectives of minimizing total energy costs and achieving carbon neutrality in the energy system, realizing the overall simulation of energy system demand and carbon emissions under multiple scenario conditions.

This invention provides a method and apparatus for hydrocarbon production. The apparatus includes a primary energy utilization system, a secondary energy utilization system, and a tertiary energy utilization system. The primary energy utilization system includes power supply equipment, a fluidized bed charging device, a fixed bed energy storage device, and a steam power generation device. The secondary energy utilization system includes a gasifier containing the material to be gasified and a first heat exchanger. The tertiary energy utilization system includes a reactor for hydrocarbon production, a distillation column, and a second heat exchanger. Through this invention, the primary, secondary, and tertiary energy utilization systems work together to achieve sustainable and green hydrocarbon production.

The application provides a multilevel weight evaluation method for wellhead clean heating optimization scheme, and belongs to the technical field of oilfield wellhead heating. The technical scheme is as follows: a multilevel weight evaluation method for wellhead clean heating optimization scheme comprises the following steps: establishing a wellhead heating test platform, establishing a multilevel evaluation system, the first layer is a criterion layer including technical benefits, economic benefits and social benefits; the technical benefits include primary energy utilization rate, technical maturity and equipment maintainability; the economic benefits include investment, operation cost and investment recovery period; the social benefits include resource availability, policy support and balanced energy structure; the weights of the three criterion layers are determined by experts; the weights of each sublayer index are determined by using independent weights; the comprehensive scores of all schemes are calculated, and the highest score is the optimal scheme. The application is based on the wellhead heating test platform, simulates field conditions, is accurate in data, and can objectively and accurately evaluate the wellhead clean heating optimization scheme.

The utility model discloses an energy-saving defoaming device which comprises a box body, a first-stage foam separating plate and a second-stage foam separating plate are arranged in the box body, and the interior of the box body is sequentially divided into a first-stage energy dissipation area, a second-stage energy dissipation area and a third-stage energy dissipation area by the first-stage foam separating plate and the second-stage foam separating plate. The first-stage bubble isolation plate and the second-stage bubble isolation plate are matched with the inner wall of the box body to define the second-stage energy dissipation area, a first water passing hole is formed in the bottom of the first-stage bubble isolation plate, and a second water passing hole is formed in the bottom of the second-stage bubble isolation plate; the water inlet pipe is communicated with the primary energy dissipation area; and the drainage pipe is communicated with the third-stage energy dissipation area. According to the utility model, the operation cost is not additionally increased while the foam can be effectively removed.

This disclosure relates to the field of magnetic shielding technology, and discloses a wide-range pulse compensation circuit and device for magnetic shielding demagnetization. A primary energy storage unit supplies power to a first energy storage element via a first charging element, and a first control element adjusts the charging speed of the first energy storage element. A power compensation unit charges a second energy storage element via a dual-pathway, and a second control element switches to achieve power compensation. A resonant modulation unit, through a third control element and a resonant adjustment module, maintains the underdamped oscillation of the demagnetizing coil and adjusts the resonant parameters, while the demagnetizing coil generates a demagnetizing pulse magnetic field. The primary energy storage unit adjusts the charging speed of the first energy storage element via the first control element, allowing for flexible adaptation to different operating modes. This satisfies the need for rapid energy replenishment after long-term idle periods, and also addresses scenarios of short-term repeated use and single large energy output, improving the circuit's energy storage adaptability and energy utilization efficiency.

The invention belongs to the technical field of gas turbine combustion chamber full-temperature and full-pressure performance test design, and particularly relates to an air inlet heating system and method for a gas turbine combustion chamber full-temperature and full-pressure performance test, which can improve the primary energy utilization rate, reduce the energy consumption and ensure the rapid and accurate control of inlet parameters of a combustion chamber test piece. The system preparation efficiency can be improved, the time before and after the test is shortened, real inlet working conditions can be provided for combustion chamber test pieces, and condition guarantee is provided for combustion chamber development tests.

The operating mechanism and the isolating switch, the isolating switch comprising the operating mechanism, the operating mechanism comprising a primary energy storage mechanism and an output shaft, further comprising a secondary energy storage mechanism, the secondary energy storage mechanism comprising a second driving structure coaxially assembled on the output shaft and a second energy storage elastic piece, the second driving structure comprising a fixing piece and a locking assembly, the fixing piece being provided with two limiting grooves, the primary energy storage mechanism releasing energy to drive the output shaft to rotate to store energy for the second energy storage spring when opening, after the locking part of the locking assembly driven by the output shaft slides out of one of the limiting grooves to be unlocked, the second energy storage elastic piece releases energy to drive the locking assembly to drive the output shaft to continue to rotate to the open position, and the locking part is driven to slide into the other limiting groove to be limited and locked, the primary energy storage mechanism and the secondary energy storage mechanism driving the output shaft to rotate twice, which can drive the contact mechanism to have a larger opening distance when opening, and is beneficial to guarantee the electrical performance of the product.

A mobile hybrid generator system is for providing grid-like AC power output to a load at off-grid locations. Also, a tracked vehicle may include the hybrid generator system as a power supply system. A mobile hybrid generator system for providing grid-like AC power output to a load at off-grid locations may include a housing accommodating: a rechargeable electrical energy storage unit, such as a battery, configured to provide a DC power output, at least a first primary energy source, such as a combustion engine, for charging the rechargeable energy storage unit, and an inverter unit configured for converting the DC power output from the rechargeable energy storage unit to the grid-like AC power output, wherein the mobile hybrid generator is configured such that the grid-like AC power output is provided only from the inverter unit, both during normal mode operation and during peak power operation.

The present disclosure relates to an aircraft comprising: a fuselage and at least one wing arranged in a tube-and-wing design; a plurality of propulsors; and a primary energy source configured to power the propulsors, the primary energy source comprising rechargeable batteries. The aircraft has a maximum take-off mass ‘MTOM’ of at least 8,618 kg; and an electric range factor ‘ERF’ of at least 6.