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31results about How to "Realize shifting peaks and filling valleys" patented technology
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Stored-energy capacity configuration method used for stabilizing city load growth
ActiveCN103956760ARealize shifting peaks and filling valleysReduce load peak-to-valley differenceAc network load balancingSpecial data processing applicationsConfiguration optimizationEngineering
The invention provides a stored-energy capacity configuration method used for stabilizing city load growth. The stored-energy capacity is an electric-energy quantity stored by an energy-storage system installed in a power grid. The method includes the following steps: obtaining typical daily load data of an installation point of the energy-storage system; calculating an output power of the energy-storage system; calculating a energy-storage-cell configuration capacity and an energy-storage rated power; constructing an energy-storage capacity configuration optimization target function; and carrying out an iterative operation until an optimal solution is obtained. The method realizes functions of peak load shifting and load peak and valley difference reduction in a city power distribution network. The method reasonably selects an energy-storage capacity according to a typical daily load curve of an energy-storage access point so that the adaptability is great; electric energy consumption and energy storage investment cost are considered comprehensively and while the voltage distribution of the power distribution network is adjusted, the voltage deviation of the power distribution network is reduced and the loss of the power distribution network is reduced, the investment cost is reduced as much as possible so that waste of energy storage device capacity is prevented; and the method is capable of calculation through use of an iterative method, simple and easy to realize and high in convergence rate.
Owner:STATE GRID CORP OF CHINA +4
Cooling-heating-integrated double-capillary-tube-layer phase-change energy storage floor terminal device and application system
InactiveCN104141980ARealize shifting peaks and filling valleysSolve the problem of power peak and valley differenceLighting and heating apparatusSpace heating and ventilation detailsEngineeringCement mortar
The invention relates to a cooling-heating-integrated double-capillary-tube-layer phase-change energy storage floor terminal device and an application system. The cooling-heating-integrated device combining a traditional capillary tube radiant cooling / heating with the phase-change energy storage technology comprises a ground source heat pump, a water distributor, a water collector, a solar heat collector, an auxiliary electric heater and an energy storage floor. The energy storage floor comprises a floor surface layer, a concrete layer, a heat storage phase-change material layer, a cement mortar screeding layer, a cool storage phase-change material layer, a reflecting film and an insulating layer from top to bottom, wherein the heat storage phase-change material layer is used for storing heat at night in winter, the cement mortar screeding layer is used for separating the heat storage phase-change material layer from the cool storage phase-change material layer and facilitates laying of the phase-change material layers, the cool storage phase-change material layer is used for storing cool at night in summer, the reflecting film is used for reflecting and blocking heat to decrease heat exchange between the cool storage phase-change material layer and the insulating layer, and the insulating layer is made of materials low in heat conductivity and small in density and used for further decreasing heat loss of floor structural layers. Capillary tubes are laid in the heat storage phase-change material layer and the cool storage phase-change material layer to be used for supplying hot water and cool water respectively.
Owner:东南大学常州研究院
Nanometer phase change energy-storage-type heat pump water heater
InactiveCN104180521AReduce volumeSmall footprintFluid heatersHeat storage plantsEngineeringEnergy conservation
The invention discloses a nanometer phase change energy-storage-type heat pump water heater. The heat pump water heater comprises a phase change energy storage box, wherein a condensation heat exchange coil pipe and a waterway heat exchange coil pipe are mounted in the phase change energy storage box; an expansion valve, an evaporimeter and a compressor are connected in a condensation heat exchange coil pipe loop in sequence; the phase change energy storage box is filled with a nanometer phase change energy storage material of which the phase change temperature is 50 to 60 DEG C; the nanometer phase change energy storage material comprises the following components in parts by weight: 0.5 to 2.0 parts of nano-particles, 0.9 to 3.6 parts of a dispersant, 94.4 to 98.6 parts of a phase change working medium. The potential heat value of the phase change material is large, and lots of heat can be absorbed in a phase change process, so that the heat conductivity coefficient of the phase change material is high, the heat transfer coefficient of the phase change energy storage box is improved, the time for thermal reaction is shortened, the efficiency is higher, and the energy conservation can be achieved better; thus, the heat pump water heater provided by the invention can be applied to the production and life field to realize that electric energy can be utilized to generate and store the heat during a low electricity demand period and release the heat during a high electricity demand period. Thus, the mismatch of two sides of energy supplying and energy demanding on time, strength and place is effectively released and solved, so that the aim that energy can be utilized reasonably and environmental pollution can be relieved is achieved.
Owner:ZHONGSHAN FLASHLIGHT POLYTECHNIC
Method for modifying thermal power station by storing energy through fused salt and device of method
InactiveCN104406152ASolve environmental problemsReduce carbon emissionsEnergy industrySteam generation plantsElectricityEngineering
The invention relates to a method for modifying a thermal power station by storing energy through fused salt and a device of the method. A fused salt heat storage system and a steam generation system are adopted instead of a coal-fired boiler of the conventional thermal power station; the fused salt is heated by using off-peak electricity to store heat; the stored heat is transformed into high-temperature and high-pressure steam; power is generated on a power consumption peak, or regional heating is performed by using an original pipeline. By adopting the method and the device, environmental problems caused by coal burning of the conventional thermal power station are solved fundamentally, the carbon emission is reduced, the problem of overlarge steam conveying distance during heating of a newly-built remote thermal power plant can be solved, and the investment cost is saved. Meanwhile, the off-peak electricity can be utilized effectively, and reasonable utilization of energy is realized.
Owner:江苏太阳宝新能源有限公司
Heatable brick bed ventilation air conditioner and heating system preferentially facilitating human body
ActiveCN109373481ALow running costRealize heatingSolar heating energyMechanical apparatusSupply energyHeating system
Owner:CHINA NORTHWEST ARCHITECTURE DESIGN & RES INST CO LTD
Energy storage type solar injection refrigerating device
InactiveCN101251314AWide temperature rangeMeet supplySolar heat devicesMachines using refrigerant evaporationEngineeringAir conditioning
The invention relates to an energy storage solar ejection refrigeration device by adopting the solar energy to refrigerate, comprising a solar thermal collector, a water pump and a generator which form a circulation loop together with the solar thermal collector, a refrigerating medium circulation loop which exchanges the heat with the generator and consists of an ejector, a condenser and the refrigerating medium which are connected in series, a refrigerating medium circulatory refrigeration loop consisting of a throttling valve, an evaporator, the ejector and the condenser and an air conditioning circulatory refrigeration loop consisting of an air conditioning water pump and the evaporator, wherein, in the air conditioning circulatory refrigeration loop, a cold water loop is provided with a three way valve F6 and a valve F1, a cold water supply pipeline is provided with a valve F2 and a three way valve F4, an ice storage tank is arranged on a pipeline between the three way valve F6 and the three way valve F4, a pipeline between the valve F2 and the three way valve F4 is communicated with the ice storage tank by the valve F3, a pipeline between the ice storage tank and the three way valve F4 is also provided with a valve F5. The solar energy utilization ratio is increased by more than 30 percent, the cooling capacity is increased by more than 20 percent, 'the peak shifting and valley filling' of the solar energy is realized and the electric fence load is lightened.
Owner:ZHONGYUAN ENGINEERING COLLEGE
Power grid multivariate optimization scheduling method for improving wind power acceptance capability
PendingCN111934366AAchieve transferRealize shifting peaks and filling valleysSingle network parallel feeding arrangementsEnergy storageNuclear powerClean energy
The invention provides a power grid multivariate optimization scheduling method for improving the wind power acceptance capability, which comprises the steps of 1, predicting wind power through a windpower output model, and meanwhile, adjusting spinning reserve of the system; and 2, optimizing the output of each unit, realizing a nuclear power and hydrogen storage assisted joint optimization scheduling method under the condition of taking thermal power as a base load, realizing equivalent peak regulation of nuclear power, and realizing a wind-nuclear-storage-thermal power joint optimization scheduling process. The invention provides a method for improving the wind power acceptance capability through wind-thermal-nuclear storage optimization scheduling. Firstly, a wind power model of windpower uncertain output is established to realize the prediction condition of the wind power output; then a nuclear power peak shaving depth model is established, the nuclear power peak shaving depth is determined, a scheduling model based on joint optimization is established, thermal power, nuclear power and energy storage scheduling is analyzed and determined through an ant colony algorithm, energy transfer and peak load shifting are achieved, and clean energy output is maximized by increasing the utilization amount and utilization rate of clean energy.
Owner:STATE GRID LIAONING ECONOMIC TECHN INST +2
Energy storage system capable of simultaneously supplying cold and heat
PendingCN110081503AReduce use costImprove heating efficiencyLighting and heating apparatusAir conditioning systemsElectricity priceEvaporator
The invention discloses an energy storage system capable of simultaneously supplying cold and heat. The energy storage system comprises a water chilling unit and a heat pump unit, the evaporator sideof the water chilling unit communicates with a first heat exchanger through a cold supply pipe for cooling, the condenser side of the heat pump unit communicates with a second heat exchanger through aheat supply pipe for heating, and a cold storage tank connected with the cold supply pipe in parallel and a heat storage tank connected with the heat supply pipe in parallel are further included. Theenergy storage system is provided with the cold storage tank and the heat storage tank, when the electricity price is at the low ebb at night, the cold storage tank and the heat storage tank can be used for energy storage, the cold capacity and the heat capacity of the cold storage tank and the heat storage tank can be released to be used by the first heat exchanger and the second heat exchangerto supply heat and cold to the user side when the electricity price is at the high peak state in daytime, peak shifting of the electricity is achieved, and the use cost is reduced.
Owner:姚博
Cooling storage type refrigeration and insulation tank
InactiveCN106225276ARealize shifting peaks and filling valleysRealize energy-saving utilizationCompression machines with non-reversible cycleDomestic refrigeratorsCool storageEngineering
The invention discloses a cooling storage type refrigeration and insulation tank, which comprises an insulation tank body, a refrigerating unit, cooling storage tanks, an electric power storage system and a temperature monitoring feedback system. The insulation tank body comprises a shell, an inner storage cavity and an insulation layer; the refrigerating unit comprises a high-efficient compressor, a condenser, an expansion valve and an evaporation coil; and the temperature monitoring feedback system comprises a temperature sensor and an intelligent change-over switch. The invention further discloses a working process of the cooling storage type refrigeration and insulation tank. The device is externally connected with a refrigeration power supply and a storage battery refrigeration power supply, so that the aims of high-efficient refrigeration and cooling storage of distributing nodes and regulation and cold release during a distribution process are achieved; during the distribution process of the device, storage battery power supply refrigeration and insulation as well as cooling storage and insulation are combined, so that a high-efficient and stable low-temperature cooling storage and insulation function of the device is ensured; and the cooling storage tanks in the device can be flexibly arranged according to the range factors such as the quantity, the distributing distance, and multiple distributing terminals of the distribute goods, so that the individuation and the sensitivity in applying the insulation tank are improved, and the use effect is good.
Owner:SHENZHEN RUISI COLD CHAIN CO LTD
Peak regulation energy storage device with carbon dioxide as working medium and control method thereof
ActiveCN110847988ARealize shifting peaks and filling valleysIncrease flexibilityHeat storage plantsEngine componentsProcess engineeringChemistry
The invention discloses a peak regulation energy storage device with carbon dioxide as a working medium and a control method thereof. The peak regulation energy storage device comprises an energy storage system and an energy release system. The energy storage system comprises a carbon dioxide energy storage cycle subsystem, a first energy storage subsystem and a second energy storage subsystem, wherein the carbon dioxide energy storage cycle subsystem is used for achieving the energy storage thermodynamic cycle of the carbon dioxide, the first energy storage subsystem is used for achieving basic energy storage of cold and heat, the second energy storage subsystem is used for achieving multistage storage of energy, and the energy release system comprises a carbon dioxide energy release cycle subsystem, a first energy release subsystem and a second energy release subsystem. The carbon dioxide energy release cycle subsystem is used for achieving the energy release thermodynamic cycle of the carbon dioxide, the first energy release subsystem is used for achieving basic energy release of cold and heat, and the second energy release subsystem is used for achieving multistage release of energy. Through the peak regulation energy storage device with the carbon dioxide as the working medium and the control method thereof, multistage energy storage and release can be achieved, and peak load shifting is conducted flexibly.
Owner:XI AN JIAOTONG UNIV
Photovoltaic curtain wall and double-source heat pump integrated system suitable for cold area
InactiveCN105042942ARealize shifting peaks and filling valleysSolve the problem of low heating guarantee rateMechanical apparatusHeat pumpsElectrical batteryEngineering
Owner:SHENYANG JIANZHU UNIVERSITY
High-efficient energy-storage central air-conditioning system
InactiveCN103759350AEnergy efficiencyRealize shifting peaks and filling valleysLighting and heating apparatusAir conditioning systemsPower gridTemperature difference
The invention discloses a high-efficient energy-storage central air-conditioning system, in particular to a high-efficient energy-storage central air-conditioning system which adopts a plurality of water-temperature naturally-layered small and medium flat-bottom cylindrical impounding tanks, wherein the plurality of water-temperature naturally-layered small and medium flat-bottom cylindrical impounding tanks are connected in series and in parallel, and water distributors are arranged in the impounding tanks, so that the water layering effect is good; and the impounding tanks are adopted to store cold water or hot water at large temperature difference at night, constant temperature cooling or heating can be carried out in the day time. The central air-conditioning system is easy, flexible and reliable to use, high in efficiency, small in investment, maximally realizes the peak load shifting of a power grid, optimizes a power utilization structure, saves operating cost, saves primary investment and the like; and thermal insulating layers are arranged around energy storage tank groups, so as to insulate the impounding tanks, so that the energy storage of the impounding tanks is more high efficient.
Owner:ZHONGSHAN LANSHUI ENERGY TECH DEV
Double-cold-source air conditioning system
InactiveCN110953668AMeet the requirements of hot and humid environmentTemperature controlMechanical apparatusLighting and heating apparatusHigh energyIce storage
The invention discloses a double-cold-source air conditioning system. The system comprises a water chilling unit and an ice storage unit, wherein the water chilling unit serves as a high-temperature heat source and is used for treating indoor sensible heat loads, and the ice storage unit serves as a low-temperature heat source and is used for treating indoor latent heat loads, and the two units are independently controlled. The ice storage unit comprises a main machine, an ice storage tank, a first heat exchanger and a second heat exchanger, wherein a first branch and a second branch are led out between an outlet of the main machine and an inlet of the ice storage tank in parallel, the other end of the first branch is connected with the first heat exchanger to form an ice storage and coldrelease loop, and the other end of the second branch is connected with the second heat exchanger to form a main machine cold supply loop; and an inlet of the main machine communicates with an outlet of the ice storage tank through a third branch to form an ice storage loop, and opening and closing of each loop are controlled through a control valve. The double-cold-source air conditioning system combines the advantages of high-temperature water and ice storage, and meanwhile the advantages of high energy efficiency and low cost are achieved.
Owner:GREE ELECTRIC APPLIANCES INC
Energy storage type solar injection refrigerating device
InactiveCN101251314BWide temperature rangeMeet supplySolar heat devicesMachines using refrigerant evaporationEngineeringAir conditioning
The invention relates to an energy storage solar ejection refrigeration device by adopting the solar energy to refrigerate, comprising a solar thermal collector, a water pump and a generator which form a circulation loop together with the solar thermal collector, a refrigerating medium circulation loop which exchanges the heat with the generator and consists of an ejector, a condenser and the refrigerating medium which are connected in series, a refrigerating medium circulatory refrigeration loop consisting of a throttling valve, an evaporator, the ejector and the condenser and an air conditioning circulatory refrigeration loop consisting of an air conditioning water pump and the evaporator, wherein, in the air conditioning circulatory refrigeration loop, a cold water loop is provided with a three way valve F6 and a valve F1, a cold water supply pipeline is provided with a valve F2 and a three way valve F4, an ice storage tank is arranged on a pipeline between the three way valve F6 and the three way valve F4, a pipeline between the valve F2 and the three way valve F4 is communicated with the ice storage tank by the valve F3, a pipeline between the ice storage tank and the three way valve F4 is also provided with a valve F5. The solar energy utilization ratio is increased by more than 30 percent, the cooling capacity is increased by more than 20 percent, 'the peak shifting andvalley filling' of the solar energy is realized and the electric fence load is lightened.
Owner:ZHONGYUAN ENGINEERING COLLEGE
Fuel gas and steam combined power device with peak regulation and energy storage functions and control method thereof
ActiveCN107237657ARealize shifting peaks and filling valleysAction response is fastEngine fuctionsGas turbine plantsEngineeringTurbine
The invention discloses a fuel gas and steam combined power device with peak regulation and energy storage functions and a control method thereof. The fuel gas and steam combined power device comprises a first power generator, a steam turbine, an axial flow compressor, an axial flow turbine and a second power generator. The first power generator is connected with one end of a first rotating shaft, and the other end of the first rotating shaft is connected with one end of a second rotating shaft through a first 3S clutch; the other end of the second rotating shaft is connected with one end of a third rotating shaft through a second 3S clutch, and the other end of the third rotating shaft is connected with the second power generator; and the steam turbine is installed on the first rotating shaft, the axial flow compressor is installed on the second rotating shaft, and the axial flow turbine is installed on the third rotating shaft. The fuel gas and steam combined power device is used for conducting corresponding regulation when the power load is changed so as to adapt to the load change, peak shifting and valley filling are achieved, and the problems of difficult peak regulation, insufficient flexibility, low energy utilization rate and the like in an existing power plant can be well solved.
Owner:XI AN JIAOTONG UNIV
Water treatment equipment
InactiveCN112629151AAvoid breedingRealize shifting peaks and filling valleysDomestic cooling apparatusHeat storage plantsProcess engineeringRefrigeration
The invention discloses water treatment equipment, which comprises an energy storage box, an energy storage loop, a heat exchange module, a water inlet pipe and a water outlet pipe, wherein a phase change material is arranged in the energy storage box; the energy storage loop comprises a phase change heat exchanger, an energy taking heat exchanger and a water pump which sequentially communicate, and the phase change heat exchanger is located in the energy storage box; the heat exchange module is used for refrigerating or heating the energy taking heat exchanger; the water inlet pipe is connected with the energy storage loop; and the water outlet pipe is connected with the energy storage loop. According to the technical scheme, the water treatment equipment can achieve rapid water refrigeration / heating.
Owner:GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD +1
A gas-steam combined power plant with adjustable peak energy storage and its control method
ActiveCN107237657BRealize shifting peaks and filling valleysAction response is fastEngine fuctionsGas turbine plantsEngineeringTurbine
The invention discloses a fuel gas and steam combined power device with peak regulation and energy storage functions and a control method thereof. The fuel gas and steam combined power device comprises a first power generator, a steam turbine, an axial flow compressor, an axial flow turbine and a second power generator. The first power generator is connected with one end of a first rotating shaft, and the other end of the first rotating shaft is connected with one end of a second rotating shaft through a first 3S clutch; the other end of the second rotating shaft is connected with one end of a third rotating shaft through a second 3S clutch, and the other end of the third rotating shaft is connected with the second power generator; and the steam turbine is installed on the first rotating shaft, the axial flow compressor is installed on the second rotating shaft, and the axial flow turbine is installed on the third rotating shaft. The fuel gas and steam combined power device is used for conducting corresponding regulation when the power load is changed so as to adapt to the load change, peak shifting and valley filling are achieved, and the problems of difficult peak regulation, insufficient flexibility, low energy utilization rate and the like in an existing power plant can be well solved.
Owner:XI AN JIAOTONG UNIV
A residential area electric vehicle charging pile operation mode
InactiveCN109685554AIncrease load pressureReduce peak-to-valley differenceMarketingElectricity priceOperation mode
The invention discloses an electric vehicle charging pile operation mode in a residential area. The electric vehicle charging pile operation mode comprises the steps of determining an electric vehiclecharging pile supply scheme, determining a use scheme of an electric vehicle charging pile user, determining a calculation method of an electric vehicle charging price, and determining an electric vehicle charging peak-valley time-of-use electricity price optimization strategy. The residential area electric vehicle charging pile operation mode is a residential area-oriented electric vehicle charging operation mode and operation strategy, and a typical charging pile system scheme design for a residential area is given.
Owner:江苏中科瀚星数据科技有限公司
Self-temperature adjustment inorganic phase change temperature control material and construction method for composite wall body heat preservation system
The invention discloses a self-temperature adjustment inorganic phase change temperature control material and a construction method for a composite wall body heat preservation system, relates to a temperature control material and a construction method for a heat preservation system and aims to solve the technical problems that an organic heat preservation material is easy to carbonize, and secondary insulation and maintenance of the inorganic and phase change temperature control material cause the fact that the cost is increased. The material consists of an inorganic gel material, a granular heat preservation material, fibers and an external additive. The method comprises the steps of preparing the self-temperature adjustment inorganic phase change temperature control material; coating the inner side of an external wall enclosure structure base layer, the two sides of an internal wall structure base layer, the inner side of a roof structure base layer, the two sides of a door window hole base layer, all expansion joints or the surfaces of detail structures with the self-temperature adjustment inorganic phase change temperature control material, and coating the surface of the self-temperature adjustment inorganic phase change temperature control material with a coating to finish construction of the composite wall body heat preservation system. The construction process disclosed by the invention is quick, simple and convenient; the conventional plastering and heat preservation processes are eliminated, so that the construction speed is further increased, and the manufacturing cost is low. The self-temperature adjustment inorganic phase change temperature control material is used for a heat preservation system of a building.
Owner:齐齐哈尔力嘉商贸有限公司
A peak-shaving energy storage device using carbon dioxide as a working medium and its control method
ActiveCN110847988BRealize shifting peaks and filling valleysIncrease flexibilityHeat storage plantsEngine componentsProcess engineeringCarbon dioxide
The invention discloses a peak regulation energy storage device with carbon dioxide as a working medium and a control method thereof. The peak regulation energy storage device comprises an energy storage system and an energy release system. The energy storage system comprises a carbon dioxide energy storage cycle subsystem, a first energy storage subsystem and a second energy storage subsystem, wherein the carbon dioxide energy storage cycle subsystem is used for achieving the energy storage thermodynamic cycle of the carbon dioxide, the first energy storage subsystem is used for achieving basic energy storage of cold and heat, the second energy storage subsystem is used for achieving multistage storage of energy, and the energy release system comprises a carbon dioxide energy release cycle subsystem, a first energy release subsystem and a second energy release subsystem. The carbon dioxide energy release cycle subsystem is used for achieving the energy release thermodynamic cycle of the carbon dioxide, the first energy release subsystem is used for achieving basic energy release of cold and heat, and the second energy release subsystem is used for achieving multistage release of energy. Through the peak regulation energy storage device with the carbon dioxide as the working medium and the control method thereof, multistage energy storage and release can be achieved, and peak load shifting is conducted flexibly.
Owner:XI AN JIAOTONG UNIV
A heat storage peak-shaving device for a heating system
ActiveCN105240897BLow cost of transmission and distributionIncrease the temperature difference between inlet and outlet waterCentral heating with accumulated heatLighting and heating apparatusTemperature differenceEngineering
The invention discloses a heat-storage peak regulating device used for a power supply system, and relates to a heating supply system and method for strengthening the self-adaptive performance of a heat supply system, simplifying a control process and realizing efficient and low-cost operation by utilizing a heat storage means. The device comprises a water supply section heat exchange tube (1), a water return section heat exchange tube (2), a heat storage / heat exchange module (3), a water supply tube of a water supply section heat exchange tube (1) connecting system and a water return tube of a water return section heat exchange tube (2) connecting system; a heat storage body is arranged in the heat storage / heat exchange module (3); the heat storage body is made of a phase-transition heat storage material and has a phase-transition temperature Tx0 which is set to be between the inlet water temperature of the water supply section heat exchange tube (1) and the return water temperature of the water return section heat exchange tube (2). According to the heat-storage peak regulating device, a high-position heat storage and low-position heat release means is adopted to reasonably digest heat exchange temperature difference caused by phase-change heat storage and increase inlet and return water temperature difference during practical operation of the system.
Owner:NANJING KULANG ELECTRONICS
An online interactive ups circuit
ActiveCN110323771BImprove efficiencyIsolation highAc network load balancingReactive power adjustment/elimination/compensationControl systemControl engineering
The invention relates to an online interactive UPS circuit, and belongs to the field of power supplies. The online interactive UPS circuit comprises an energy storage unit, an isolation transformer, an alternative current input / output switch, a smart rapid switch, an input electric reactor, a static / maintenance bypass switch and a central control system; the static bypass switch is connected in parallel with the maintenance bypass switch, and one end is connected to a power grid, the other end is connected with a load; the smart rapid switch input end is connected to the power grid through thealternative-current input switch; one end of the input electric reactor is connected with the smart rapid switch, and the other end is connected to the load through the output switch; a high-voltageend of the isolation transformer is connected to the power grid between the electric reactor and the output switch; a low-voltage end of the isolation transformer is connected with an energy storage unit; a central control system is used for controlling the power grid event, and disconnecting the load and the failure alternative-current input. Through adoption of the online interactive UPS circuit, grid-connection working condition and off-grid working condition can be switched seamlessly, the load is supplied with power continuously, so that the integral efficiency of the UPS device is improved.
Owner:中冶赛迪电气技术有限公司
A kang-body ventilation, air-conditioning and heating system that is preferentially used by the human body
ActiveCN109373481BRealize heatingRealize functionSolar heating energyMechanical apparatusBrickThermal comfort
The invention provides a heatable brick bed ventilation air conditioner and heating system preferentially facilitating a human body. The heatable brick bed ventilation air conditioner and heating system preferentially facilitating the human body comprises an outdoor energy supplying module and an indoor energy storing and utilizing module. The outdoor energy supplying module can supply heat or cooling capacity to an energy storage water tank through a heat pump subsystem and a circulating water energy supplying subsystem, and during energy storing, the heat pump subsystem runs at night when valley electricity is at a low price, and the operating cost can be reduced. The energy storage water tank can serve as a cold source or a heat source of a capillary network heat exchanger of the indoorenergy storing and utilizing module to heat and cool concrete pavements and indoor space, and the both effects of cooling in summer and carrying out heating in winter are achieved. On the indoor side, the temperature regulating and controlling near the human body is given priority to, the thermal comfort is high, the capillary network heat exchanger is adopted, the high-temperature cold source and the low-temperature heat source can be utilized, and therefore building energy saving and efficiency utilizing of energy sources are achieved on three aspects of energy supplying, energy storing andenergy utilizing.
Owner:CHINA NORTHWEST ARCHITECTURE DESIGN & RES INST CO LTD
An energy storage capacity allocation method for stabilizing urban load growth
ActiveCN103956760BRealize shifting peaks and filling valleysReduce load peak-to-valley differenceAc network load balancingSpecial data processing applicationsConfiguration optimizationEngineering
The invention provides a stored-energy capacity configuration method used for stabilizing city load growth. The stored-energy capacity is an electric-energy quantity stored by an energy-storage system installed in a power grid. The method includes the following steps: obtaining typical daily load data of an installation point of the energy-storage system; calculating an output power of the energy-storage system; calculating a energy-storage-cell configuration capacity and an energy-storage rated power; constructing an energy-storage capacity configuration optimization target function; and carrying out an iterative operation until an optimal solution is obtained. The method realizes functions of peak load shifting and load peak and valley difference reduction in a city power distribution network. The method reasonably selects an energy-storage capacity according to a typical daily load curve of an energy-storage access point so that the adaptability is great; electric energy consumption and energy storage investment cost are considered comprehensively and while the voltage distribution of the power distribution network is adjusted, the voltage deviation of the power distribution network is reduced and the loss of the power distribution network is reduced, the investment cost is reduced as much as possible so that waste of energy storage device capacity is prevented; and the method is capable of calculation through use of an iterative method, simple and easy to realize and high in convergence rate.
Owner:STATE GRID CORP OF CHINA +4
A heat supply method of cascading heat pump with low valley electric heat storage
ActiveCN110056936BImprove power generation efficiencyImprove matchHeating fuelCentral heating with accumulated heatVapor–liquid separatorEngineering
Owner:NORTHEASTERN UNIV LIAONING
Solid particle heat storage and release system of multistage fluidized bed
PendingCN113432469AImprove operational flexibilityRealize shifting peaks and filling valleysHeat storage plantsFluidized bedCogeneration
The invention discloses a solid particle heat storage and release system of a multistage fluidized bed and belongs to the technical field of heat storage. The solid particle heat storage and release system comprises a heat storage and exchange unit, a heat release and exchange unit and a particle transportation unit, the heat storage and exchange unit is provided with a steam channel and a heat storage particle channel, and when the steam of a unit is sufficient, solid particles circulating in the heat storage particle channel are heated through unit steam extraction in the steam channel; the heat release and exchange unit is provided with a water supply channel and a heat release particle channel, and when the unit is in a low load, solid particles circulating in the heat release particle channel are used for heating water in the water supply channel so as to form superheated steam; the particle transportation unit is connected between the heat storage and exchange unit and the heat release and exchange unit and provides power for circulation of solid particles in the heat storage particle channel and the heat release particle channel, so that the external steam supply capacity of the unit can be kept stable, and the heat supply capacity is not affected by the power generation load of the unit, therefore, the operation flexibility of a cogeneration unit is improved.
Owner:DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP
Self-regulating inorganic phase change temperature control material and construction method of composite wall insulation system
The invention discloses a self-temperature adjustment inorganic phase change temperature control material and a construction method for a composite wall body heat preservation system, relates to a temperature control material and a construction method for a heat preservation system and aims to solve the technical problems that an organic heat preservation material is easy to carbonize, and secondary insulation and maintenance of the inorganic and phase change temperature control material cause the fact that the cost is increased. The material consists of an inorganic gel material, a granular heat preservation material, fibers and an external additive. The method comprises the steps of preparing the self-temperature adjustment inorganic phase change temperature control material; coating the inner side of an external wall enclosure structure base layer, the two sides of an internal wall structure base layer, the inner side of a roof structure base layer, the two sides of a door window hole base layer, all expansion joints or the surfaces of detail structures with the self-temperature adjustment inorganic phase change temperature control material, and coating the surface of the self-temperature adjustment inorganic phase change temperature control material with a coating to finish construction of the composite wall body heat preservation system. The construction process disclosed by the invention is quick, simple and convenient; the conventional plastering and heat preservation processes are eliminated, so that the construction speed is further increased, and the manufacturing cost is low. The self-temperature adjustment inorganic phase change temperature control material is used for a heat preservation system of a building.
Owner:齐齐哈尔力嘉商贸有限公司
Mechanical flash air-conditioning refrigeration system and its working method
ActiveCN106705308BImprove operating conditionsReduce operating energy consumptionLighting and heating apparatusSpace heating and ventilation detailsWater vaporOperating energy
The invention provides a mechanical flash air-conditioning and refrigeration system and a working method thereof, belonging to the technical field of refrigeration. The system uses water as the working medium. Compared with the conventional refrigeration system using freon as the working medium, the circulating working medium has no environmental hazards; the frozen water obtained by flash evaporation directly exchanges heat with the indoor air when the invention works, and the cooling capacity release only needs One-stage heat exchange, the cooling capacity loss of the system is small, and the operating conditions of the water vapor compressor are improved, the energy consumption of the water vapor compressor is reduced, and the system has a high refrigeration coefficient. The system of the present invention can adjust the frequency of the water vapor compressor during the low electricity price period at night, increase the flash cooling capacity of the system, store cold through the flash tank, and release the cooling capacity during the high electricity price period, which not only realizes the optimization of power resources Peak shifting and valley filling, while reducing the operating costs of the system. The mechanical flash air-conditioning and refrigeration system of the present invention has the characteristics of energy saving, environmental protection and the like.
Owner:JIANGSU LEKE ENERGY SAVING TECH CO LTD
Cold storage heat storage type air conditioner
InactiveCN104235978BVersatileThe capacity adapts to a wide rangeLighting and heating apparatusAir conditioning systemsEngineeringRefrigeration
Owner:HISENSE (SHANDONG) AIR CONDITIONING CO LTD
Heat pipe cold accumulating air conditioning device
InactiveCN100394115CIncrease the usable areaReduce installed capacityLighting and heating apparatusAir conditioning systemsEvaporationMagnetic valve
This invention discloses a kind of heat pipe cooling accumulator air conditioner device. Indoor machine set is composed of fan and heat exchanging coil pipe; for outdoor machine set, upside condensation segment of heat pipe is positioned in evaporator, while the underside evaporation segment in the cooling accumulating tank which is filled with cooling medium; the inlet of compressor respectively connects to the outlets of evaporator using for air conditioner and cooling accumulation, while the outlet to the inlet of condenser; the outlet of condenser respectively connects to the inlets of evaporator using for air conditioner and cooling accumulation through magnetic valve and stop valve; indoor machine set respectively connects to the inlets of evaporator using for air conditioner and cooling accumulating tank through magnetic valve; the evaporator using for air conditioner and cooling accumulating tank all connect to the inlet of circulating pump through magnetic valve; the outlet of circulating pump connects to indoor machine set. This invention has short pipeline. It avoids decreasing of refrigerants pressure.
Owner:NANJING UNIV
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