933results about "Solar heat storage" patented technology

The invention relates to the technical field of solar heat utilization, and discloses an electric energy conversion and power regulation and control method based on a solar heat exchange coupling system, which comprises the following steps: calculating the phase change latent heat release rate and pressure and temperature sensitivity of a working medium in real time through a nonlinear prediction model, and establishing a compensation factor to dynamically correct the fusion weight of temperature and pressure signals; the shape memory alloy runner is driven to adjust the branch angle in a self-adaptive mode within the range of 45-75 degrees; constructing an energy potential matching matrix of the temperature gradient of the heat storage module and the output voltage of the power generation system, and combining a pulse type energy release strategy to maintain power stability; and controlling adjacent flow channel branches to generate a phase difference based on pressure fluctuation spectrum characteristics to realize fluctuation offset. According to the method, through closed-loop control of thermodynamic parameter compensation and flow channel dynamic adjustment and space-time collaborative optimization of energy potential matching and pulse release, continuous and stable power generation under the intermittent irradiation condition is achieved, the overall energy efficiency of the system is improved, and operation is more stable.

The invention relates to a solar cross-seasonal heat storage and release ground source heat pump system and a balance control method and device, and relates to the technical field of ground source heat pump systems. The ground source heat pump subsystem comprises a ground heat exchanger group which is arranged in a partitioned manner; and the cross-seasonal heat storage device is used for storing and releasing solar heat and is thermally coupled with the buried pipe heat exchanger group, the cross-seasonal heat storage device is of an underground concrete structure, and three temperature gradient areas of a high-temperature layer, a medium-temperature layer and a low-temperature layer are arranged in the cross-seasonal heat storage device. Through the synergistic effect of the dynamic load distribution mechanism and the layered heat storage strategy, the problem of soil cold and heat accumulation caused by long-term operation of the ground source heat pump system can be effectively relieved. Differential design of the core heat exchange area and the buffer temperature adjustment area is combined with a multi-objective optimization algorithm, so that the difference value of annual accumulated heat taking capacity and heat supplementing capacity is controlled within 5%, and the self-recovery capacity of the soil thermal field is remarkably improved.

A hybrid power generation system in one embodiment comprises a green boiler containing a thermal mass composition operable to store thermal energy, a solar energy collection system which absorbs solar energy to heat a first working fluid and in turn the thermal mass composition, and a power generation system comprising a steam turbine coupled to an electric generator to produce electricity and a nuclear steam supply system which convert a second working fluid comprising water from liquid to steam. Steam output by the nuclear steam supply system flows through the green boiler and is heated by absorbing heat from the thermal mass composition to increase the enthalpy of the steam and concomitantly electric power output from the turbine-generator. The nuclear steam supply system and green boiler may be retrofit to replace existing fossil fuel steam generation systems while retaining the energy conversion part of the fossil power plant.

The invention relates to the technical field of solar heat energy system control, and provides a solar phase change heat storage cooperative control method and system, which ensure that the thermal physical state of a material is accurately sensed by introducing a calibration mode; in the heat collection stage, according to the comparison between the actual melting time consumption of the phase change material and the reference melting time, the latent heat attenuation coefficient is dynamically calculated, the heat storage capacity attenuation is evaluated in real time, and misjudgment of heat storage saturation due to material performance reduction is avoided; in the heat release stage, based on the internal temperature of the heat storage unit and the water outlet temperature change of a user side, the supercooling degree of the phase change material is accurately determined, the crystallization characteristic of the phase change material is mastered in real time, and a basis is provided for supercooling intervention; and the system stores and updates the melting starting temperature, the latent heat attenuation coefficient and the supercooling degree in real time, and executes heat collection and heat release control according to the melting starting temperature, the latent heat attenuation coefficient and the supercooling degree. According to the method, the problem of inaccurate control caused by performance change of the phase-change material is solved, the utilization efficiency of solar heat energy and the stability of heat supply are remarkably improved, and energy waste is effectively avoided.

The invention discloses a photovoltaic photo-thermal energy storage multi-element coupled all-weather self-adaptive building energy system and method, and belongs to the crossing field of solar comprehensive utilization and building energy saving. The system integrates a Fresnel lens, a frequency division film, a photovoltaic power generation unit, a thermoelectric power generation unit and a multi-temperature-zone phase change energy storage device, and the surface of the photovoltaic and thermoelectric unit is covered with an aerogel heat collection and insulation layer. Sunlight is focused by a Fresnel lens and then is separated into short-wave light and long-wave light by a frequency division film, and power generation waste heat is stored in a cascade mode through a phase change energy storage device; the intelligent control unit switches a heat supply season mode or a cold supply season mode according to seasons and energy consumption requirements. The system improves the solar spectrum utilization rate, achieves all-weather self-adaptive supply of electricity and heat of the building, is compact in structure, low-carbon and efficient, and is suitable for various building energy scenes.

The invention relates to the technical field of solar photo-thermal utilization, in particular to a photo-thermal power station fused salt circulation system and a regulation and control method.The system comprises light condensation and heat collection units which are connected in parallel, and a hot fused salt module comprises a hot fused salt main pipe and a hot fused salt tank which are arranged in a low position; the cold molten salt module comprises a high-terrain cold molten salt mother pipe, a low-position cold molten salt tank and a mother pipe communicating pipe for connecting the high-terrain cold molten salt mother pipe and the low-position cold molten salt tank, and the cold molten salt tank, the mother pipe communicating pipe, the hot molten salt mother pipe, the light condensation and heat collection unit and the cold molten salt mother pipe are sequentially communicated and circulate back to the cold molten salt tank to form a salt filling circulation path; the cold molten salt tank, the cold molten salt mother pipe, the light-gathering heat-collecting unit, the hot molten salt mother pipe and the hot molten salt tank are sequentially communicated to form a heat storage path, and the light-gathering heat-collecting unit, the hot molten salt mother pipe, the mother pipe communicating pipe and the cold molten salt tank are sequentially communicated to form a salt dredging path. The scale of hot molten salt pipelines needing expensive stainless steel materials can be reduced, the matched electric heat tracing and heat preservation requirements are synchronously reduced, and the material cost and the construction complexity are remarkably reduced.

The invention discloses a loop heat pipe and water heat storage coupling system and a working method, and belongs to the technical field of heat storage. The system has the modes of light gathering of the light-following trough heat collector, heat conduction of the loop heat pipe, heat storage of the water storage tank and warm water irrigation by using the stored heat water. When sunlight is sufficient in the daytime, the system converts solar energy into sensible heat of water in the heat storage water tank and stores the sensible heat, and the sensible heat is insulated by soil to slow down heat loss; when plants need to be irrigated, warm water in the irrigation water tank is used for irrigation; at night or in the absence of illumination, warm water in the heat storage water tank exchanges heat with air in the greenhouse, so that a lasting and stable heat supply source is provided for the greenhouse. Solar energy collected by the heat collecting groove is efficiently transmitted into the water tank through the loop heat pipe driven by temperature difference to be converted into sensible heat of water to be stored, the sensible heat is used for increasing the greenhouse temperature and irrigating plants when heat is needed at night, and the purposes of efficiently storing heat in the daytime and continuously supplying heat at night are integrally achieved.

The invention relates to the technical field of hot melting salt storage, and discloses a photo-thermal system mirror surface micro-angle linkage adjustment method based on thermal perception, which breaks through the limitation of traditional single data monitoring and experience judgment through multi-source data fusion and triple physical constraint decoupling, and remarkably improves the fault diagnosis accuracy. And secondly, the problem of poor model timeliness caused by traditional static partitioning and long-period updating is solved through dynamic partitioning deployment and real-time contribution identification, so that the contribution degree matrix can be updated in real time along with the mirror surface state. Accurate tracking of parameters of different time scales and safe rehearsal of a control strategy are achieved through parameter hierarchical updating and digital twinborn verification, and parameter aliasing and optimization failure caused by a traditional single updating strategy are avoided.

The invention belongs to the technical field of solar photo-thermal power generation, and discloses a tower type solar power generation system based on lunar soil particle moving bed heat exchange, which utilizes local materials of lunar soil to prepare solid heat storage particles as a heat transfer and heat storage medium, greatly reduces the mass and volume of the system and the cost and risk of transporting materials from the earth, and improves the energy efficiency. The efficient particle moving bed heat exchanger combining the particle receiver and the heat collector utilizes direct efficient contact heat exchange between solid particles and between the particles and a heat exchange working medium, has the characteristics of high heat exchange efficiency, small heat loss and compact structure, and is particularly suitable for space vacuum and microgravity environments; it is ensured that heat is reliably and stably transmitted to the Brayton cycle power generation system from concentrated solar energy, and power is generated through the Brayton cycle power generation system.

The invention relates to a molten salt tank and discloses a high-low position integrated molten salt tank which comprises a vertical molten salt storage tank and a low molten salt storage tank which are connected into a whole, the low molten salt storage tank is located on one side of the bottom of the vertical molten salt storage tank, and a molten salt inlet and a breathing opening are formed in the top of the vertical molten salt storage tank; a short shaft pump is mounted at the top of the low-position fused salt storage tank, and an outlet of the short shaft pump is connected with a fused salt conveying pipeline; and a communicating pipe is arranged between the top of the vertical molten salt storage tank and the top of the low-position molten salt storage tank. According to the molten salt tank, the short-shaft pump is used, the vibration problem caused by a long-shaft pump can be avoided, meanwhile, the lowest liquid level of molten salt can be lowered, the dead zone of the molten salt is reduced, the consumption of the molten salt is reduced, and the cost is saved; the molten salt is driven by gravity to flow, the complex and potential unreliable siphoning effect is replaced, system operation does not depend on precise control and external force any more, safety and reliability are achieved, and the situations that flow adjustment is difficult and siphoning fails due to the fact that a siphon pipeline changes along with the liquid level in a tank are avoided.

The invention provides a combined heat and power system and a control method thereof, and relates to the technical field of combined heat and power. The system comprises a fuel gas heat and power cogeneration subsystem, a heat supply subsystem and a fused salt heat storage subsystem, the fuel gas heat and power cogeneration subsystem is used for fuel gas power supply, the fused salt heat storage subsystem can convert solar energy and / or flue gas generated by power supply into heat energy of high-temperature fused salt to be stored, and the heat supply subsystem conducts primary heating on heat supply return water through geothermal energy; and flue gas and / or high-temperature fused salt generated by power supply are / is used for conducting secondary heating on heat supply return water. Geothermal energy, solar energy and fused salt heat storage are coupled, and renewable energy sources are fully utilized for heat and power cogeneration, so that the power supply requirement and the heat supply requirement of a user are met. In the ground source heat pump unit, primary heating is conducted through geothermal energy, heat supply return water is heated into warm water, then the warm water is secondarily heated into hot water through smoke in the gas heat and power cogeneration system, the compression ratio of a compressor in a ground source heat pump can be reduced, and power consumption of the compressor is reduced.

The invention relates to a molten salt groove type heat collecting device, an operation method of the molten salt groove type heat collecting device and a molten salt groove type photo-thermal power station, and belongs to the field of molten salt groove type photo-thermal power stations. The heat collection mechanism comprises a plurality of heat collectors which are connected in series through pipelines to form a heat collector group, and the two ends of the heat collector group are communicated to the molten salt tank; the heat collector set is arranged in a U shape, a pipeline at the bottom of the U shape is a middle jumper pipe, and the middle jumper pipe is located at the highest position. And a gas outlet of the gas heating mechanism is communicated with the middle jumper pipe. The two ends of the U-shaped heat collector set are communicated with the fused salt tank, the highest position of the heat collector set is communicated with the gas heating mechanism, heating and salt injection can be conveniently conducted on the heat collectors, the automation degree is high, and convenience and rapidness are achieved.

The utility model relates to the technical field of energy conservation and environmental protection, in particular to a solar cross-quarter energy storage and soil source heat pump coupling heating system. The system comprises a solar photo-thermal photovoltaic integrated subsystem, a soil source heat pump coupling heat storage system and a heat user terminal system, the solar photo-thermal photovoltaic integrated subsystem comprises a photo-thermal photovoltaic integrated assembly, a heat exchanger, a storage battery and a circulating pump, and the solar photo-thermal photovoltaic integrated subsystem is used for supplying power to electric equipment of the system and collecting heat; the soil source heat pump coupling heat storage system comprises a soil source heat pump unit, a plate heat exchanger and soil serving as a heat storage medium. And a terminal user maintains proper indoor temperature and required hot water through the heat exchanger. Solar energy and geothermal energy are combined, abundant solar energy is converted into heat energy to be stored in soil in the non-heating season, then the heat energy is taken out through the ground source heat pump for heating in the heating season, renewable energy sources are fully utilized, and the current situation that cold and heat loads are uneven due to long-term operation of the soil is effectively prevented; finally, the purposes of high efficiency, energy conservation and emission reduction are achieved.

The invention discloses a solar low-heat-value heat storage heating system. According to the invention, through the AI prediction sub-module of the intelligent heat energy allocation module, the matching precision of energy supply and demand is significantly improved. The system can collect various data such as meteorological parameters, historical loads and heat storage states in real time, heat supply requirements, solar input fluctuation and heat storage efficiency are accurately pre-judged through feature extraction and multi-model prediction, and prediction results are continuously corrected through error calibration. The system can know how much heat is needed and how much solar energy can be provided in advance, so that energy flow in heat collection, heat storage and heat supply links is more reasonably allocated, the situation of heat waste or insufficient supply is reduced, the self-adaptive learning sub-module effectively strengthens the long-term operation capacity of the system, the system achieves self-learning, and the energy utilization rate of the system is improved. The operation stability is kept, the energy efficiency can be continuously optimized along with the external environment, more energy is saved after long-term use, and more convenience and rapidness are achieved.

The invention relates to the technical field of photo-thermal power generation, in particular to a fused salt ultra-low liquid level conveying device based on a siphon effect, which comprises a hot fused salt storage tank for storing hot fused salt; the molten salt transition tower is a columnar body and is communicated with the hot molten salt storage tank through a siphon pipeline, the height from a pipeline opening, located in one side of the hot molten salt storage tank, of the siphon pipeline to the bottom of the hot molten salt storage tank is smaller than 0.3 m, the top of the molten salt transition tower is connected with a conveying pump, the conveying pump is connected with a conveying pipe, and the conveying pipe is connected with a conveying pipeline. The inlet of the conveying pipe is lower than the molten salt liquid level of the molten salt transition tower; and the bottom of the molten salt transition tower is at least 1.5 m lower than the bottom of the hot molten salt storage tank. The fused salt ultra-low liquid level conveying device based on the siphon effect can greatly reduce waste of a fused salt dead zone of the hot fused salt storage tank.

The copper-based composite phase change material photovoltaic energy storage and cooling coupled system and method covers power generation, cooling energy storage, energy conversion and other modules. During the day, the solar photovoltaic panel generates heat, the copper-based composite phase change material absorbs heat and stores energy and cools the photovoltaic panel; at night, the phase change material releases heat, and the thermoelectric material converts thermal energy into electrical energy. The system uses the DDPG algorithm of deep reinforcement learning to optimize operation. The state space includes solar photovoltaic panel temperature, phase change material temperature and other parameters, and the action space involves controlling cooling energy storage, energy conversion and other operations. The reward function is designed from multiple aspects such as efficiency, energy storage, power output and stability. By constructing a policy network and a value network, the system can make decisions according to environmental changes. Data is extracted from the experience replay buffer to update network parameters, allowing the system to adaptively adjust. The system not only solves the problem of high temperature of photovoltaic panels and night power generation, but also uses algorithms to improve energy utilization efficiency, which is far superior to traditional photovoltaic systems in performance.

The invention discloses a photo-thermal generator set and molten salt heat storage coupling intelligent debugging device and method, and the device comprises a multi-dimensional parameter sensing module, a digital twinborn collaborative decision module, a self-adaptive execution regulation and control module, and a safety early warning feedback module. The multi-dimensional parameter sensing module is used for collecting the heat collector outlet temperature, the working medium flow and the steam turbine steam inlet parameter of the photo-thermal generator set and collecting the heat storage tank temperature gradient, the fused salt flow, the pump set pressure, the pipeline wall temperature and the corrosion rate parameter of the fused salt heat storage system in real time. The digital twinborn collaborative decision-making module is connected with the dimension parameter sensing module; a digital twinborn model constructed based on a photo-thermal-heat storage coupling mechanism is arranged in the digital twinborn collaborative decision-making module, and the digital twinborn model performs dynamic updating by receiving real-time data of the multi-dimensional parameter sensing module and outputs optimal debugging parameters in combination with a pre-trained deep learning prediction model.

The invention discloses an LNG (Liquefied Natural Gas) cold energy gradient utilization system coupled with seawater desalination and liquefied air energy storage. A seawater desalination module of the system carries out seawater desalination by using cold energy of liquefied natural gas, and a liquefied air energy storage module carries out air compression and liquefaction in a power off-peak period and releases energy to generate power in a power peak period; the system can switch a seawater desalination priority mode, an energy storage peak regulation mode and a composite energy supply mode. According to the system, a double-loop structure is adopted, liquefied natural gas cold energy, solar heat energy, electric energy and environmental resources are fully coupled, multi-energy complementation, gradient utilization and combined cooling heating and power are achieved, flexible switching of three cooperative operation modes is achieved, the operation state of the system can be adjusted according to the external load requirement, the resource utilization efficiency and the operation economy are improved, and the energy consumption is reduced. The modular design has good expandability and engineering adaptability, has the characteristics of being green, energy-saving, environment-friendly, high in safety and stable in operation, and is suitable for guaranteeing regional water resources and balancing power generation fluctuation of unstable green energy.

A solar environmental control system includes a solar powered apparatus and a heat transfer apparatus. The solar collection apparatus includes a solar collector for absorbing solar energy, a heat storage medium, and a generator. A heat transfer fluid circulates between the solar collector, the heat storage medium, and the generator.

The invention relates to the technical field of comprehensive utilization of solar energy, in particular to a photovoltaic heat combined supply self-adaptive heat flow control system and a control method thereof, a photovoltaic-heat-storage-diagnosis integrated module is composed of a photovoltaic layer, a micro-channel heat exchange layer, a heat storage unit, a self-diagnosis unit and an intelligent control unit, based on illumination intensity, assembly temperature, fluid flow, environment humidity and wind speed data, the flow velocity of a cooling medium is dynamically adjusted through an algorithm fusing model predictive control and deep reinforcement learning, and the controller adopts a multi-core heterogeneous processor and supports OTA remote upgrade and standardization module interfaces. Through the collaborative design of the double-sided power generation assembly and the composite nanofluid and in combination with an intelligent heat flow control strategy, the temperature of the photovoltaic assembly is stabilized within the optimal interval of 25-40 DEG C, and the power generation efficiency is improved by 15-30% compared with that of a traditional system; and the heat storage unit adopts a paraffin-based / carbon nanotube composite phase change material, and is matched with a three-stage waste heat recovery system, so that the breakthrough improvement of the comprehensive utilization rate of solar energy is realized.

The invention belongs to the technical field of heat storage, and provides a paired metal hydride storage tank heat storage system and method for solar power generation. Wherein the paired metal hydride storage tank heat storage system is respectively communicated with the solar concentrating system and the electric power system through a heat exchange medium pipeline; the paired metal hydride storage tank heat storage system is configured in a multi-stage tandem mode, and at least two stages of heat storage systems are sequentially arranged in the flowing direction of heat exchange fluid in the heat output process. Under the operation requirement higher than the threshold load, all levels of heat storage systems are in an activated state, heat exchange fluid flows through each level of system according to a preset path, and heat released by each level of heat storage system is absorbed step by step; and under the condition that the load is lower than the threshold value for operation or the set working condition requirement, at least one stage of heat storage system bypass directly obtains the needed heat from other stages of heat storage systems.

The utility model relates to the technical field of hot water tanks, in particular to a photovoltaic phase change heat storage water tank which comprises a shell and an inner container, the inner container is fixedly connected in the shell, a baffle is fixedly connected in the inner container, and a phase change heat storage water tank is arranged in the space, located above the baffle, in the inner container. An electric heating water tank is arranged in the space, located below the baffle, in the inner container, the phase change water storage tank is filled with phase change heat storage balls, the upper end of the shell is fixedly connected with a ball discharging pipe opening used for adding the phase change heat storage balls into the inner container, two sets of electric appliance openings are formed in the side face of the shell, and a variable-frequency direct-current photovoltaic heating pipe and an alternating-current heating pipe are fixedly connected into the two sets of electric appliance openings respectively; direct current generated by the photovoltaic assembly directly drives the variable-frequency direct-current photovoltaic heating pipe to heat water in the electric heating water tank, the phase-change heat storage ball stores energy, heat energy is released when the temperature of hot water is insufficient, water in the inner container is heated, and the solar water heater can be stably used under various weather conditions and is good in heat energy storage effect.

The invention provides a photovoltaic photo-thermal collaborative system based on sand heat storage and a heat energy utilization method of the photovoltaic photo-thermal collaborative system. The system comprises a semitransparent photovoltaic battery assembly, a plate type condenser, a heat collection pipeline system, a sand heat storage unit and an auxiliary structure from top to bottom. The semitransparent photovoltaic cell assembly absorbs visible light to generate electricity, ultraviolet light and infrared light penetrate through the assembly and are focused to the heat collection pipeline system through the plate type condenser, and working media are heated and then stored in the sand heat storage unit to be used at night or in the peak load period. According to the system, the comprehensive utilization rate is increased to be larger than or equal to 85% through spectrum separation, sand heat storage cost is low, the service life is long, the structure is compact, adaptability is high, day and night energy supply can be achieved, the system is suitable for various scenes such as western deserts, remote areas and agricultural greenhouses, and the problems that an existing photovoltaic photo-thermal system is low in efficiency, weak in heat storage, high in cost and insufficient in environmental adaptability are effectively solved.

The invention relates to the field of solar heating, in particular to a solar heat exchange device which comprises a shell and a bottom plate, the shell and the bottom plate form a closed cavity, a heat absorption layer is arranged on the outer surface of the shell, a heat conduction pipe and a phase change energy storage material are arranged in the cavity, and the inlet end and the outlet end of the heat conduction pipe extend out of the side wall of the shell. The phase change energy storage material is arranged around the heat conduction pipe and fills the cavity, a thermal expansion layer is arranged on the inner surface of the bottom plate, and the thermal expansion layer is arranged at the bottom of the cavity. In the invention, the thermal expansion layer is located below the phase change energy storage material. When the temperature rises, the volume of the thermal expansion layer is increased and pushes the phase change material upwards, so that the liquid level of the phase change material is raised, and the phase change material can be in close contact with the top heat absorption layer continuously even in a liquid state. The problems of gaps and thermal resistance caused by volume shrinkage of the phase change material are effectively avoided, it is guaranteed that heat can be efficiently transmitted to the energy storage medium, and therefore the heat transfer efficiency of the solar heat exchange device is remarkably improved.

The invention provides a dark metal modified lithium orthosilicate-based thermochemical heat storage material as well as a preparation method and application thereof, and belongs to the technical field of energy and material science. The components of the heat storage material comprise lithium orthosilicate and dark metal, the proportion of the dark metal in the heat storage material is 2-10 mol%, and the source of the dark metal comprises one or more of manganese dioxide, ferric oxide, nickel oxide and copper oxide. Metal ions introduced into the obtained dark metal modified lithium orthosilicate-based thermochemical heat storage material have the effects of promoting the ion migration rate and resisting material sintering, and specifically, the heat storage density and the cycling stability of the material are remarkably enhanced. In addition, due to the introduction of the dark metal oxide, the color of the heat storage material is remarkably deepened, the solar spectrum absorptivity is greatly improved, the light absorption performance of the material is greatly enhanced, and the heat storage material has higher photo-thermal conversion efficiency and is more suitable for a concentrating solar energy storage system.

The invention relates to a heat pipe type fluidized bed particle heat storage system which is mainly used for solar heat utilization. The system mainly comprises a light gathering device, a heat collecting pipe and a fluidized bed. The heat collection pipe adopts a sealed vertical heat exchange pipe bundle, is divided into a heat absorption section, a heat insulation section and a heat release section, and is filled with a phase change medium to efficiently store heat and transfer heat. Heat carrier particles are contained in the fluidized bed and are in direct contact with the heat release section of the heat collecting pipe for rapid heat exchange, the fluidized bed technology is used for achieving the advantages of being rapid in heat transfer, uniform in heat distribution, large in operation flexibility and the like, and different illumination intensity conditions can be adapted. The system is compact in overall design and small in heat loss, has efficient and stable heat utilization performance, and can be widely applied to the fields of solar thermal power generation, solar thermochemistry and the like.

According to the solar cross-seasonal heat storage system, a heat storage water tank is provided with a cylindrical main tank body and an auxiliary tank body which is arranged at the bottom of the main tank body and is of an inverted cone structure, and the bottom of the heat storage water tank is provided with a conical wall face with a certain inclination angle so that fluid can be prevented from flowing; convective mixing between low-temperature water at the bottom of the heat storage water tank and high-temperature water in the upper middle of the heat storage water tank can be reduced, the internal convection effect strength is weakened, mixing of cold water and hot water is reduced, and the hot water yield can be increased. And moreover, the flow deflectors for reducing the water flow speed are arranged in the main tank body of the heat storage water tank, the water flow can be blocked by the flow deflectors, the flow speed is relatively reduced, the natural convection heat exchange intensity in the water tank is smaller, and the generated heat loss is smaller, so that the flow deflectors are beneficial to improving the heat storage efficiency of the heat storage water tank. The solar cross-seasonal heat storage system has the advantages of being high in heat storage efficiency and small in heat loss.

The invention provides a self-adaptive regulation and control heat pipe phase change TLambert wall and a control method thereof. Wherein the phase-change TLambert wall is provided with an enclosure component, and a plurality of gravity assisted heat pipes are inserted into the enclosure component. And the rotary supporting devices are arranged at the top and the bottom of the enclosure component, and the inclination angle of the enclosure component is adjusted through the rotary supporting devices, so that the working medium backflow efficiency of the gravity assisted heat pipe is changed. By means of the method, solar radiation heat can be efficiently absorbed in the daytime and rapidly transmitted to the phase change heat storage layer through the heat pipe, heat energy storage is achieved, and indoor rapid temperature rise is achieved. The data acquisition unit, the DRL control unit and the execution unit are arranged in the self-adaptive regulation heat pipe phase-change TLambert wall and cooperate with one another, fine regulation of the heat flow management capacity of the low-energy-consumption heat pipe phase-change TLambert wall is achieved, and therefore it is ensured that the system can accurately meet the actual requirements of a building all the time; and the overall energy efficiency and the indoor thermal comfort are improved.

The application relates to the technical field of solar power generation, in particular to a combined cooling, heating and power (CCHP) system. A first heat storage circuit is used for collecting solar energy and storing the solar energy as low-temperature heat energy; a second heat storage circuit is coupled with the first heat storage circuit and is used for converting the low-temperature heat energy into high-temperature heat energy and storing the high-temperature heat energy; a user heat circuit is coupled with the first heat storage circuit and / or the second heat storage circuit and is used for transmitting a heat source to a user heat end; a user cold circuit is coupled with the first heat storage circuit and / or the second heat storage circuit and is used for generating a cold source and transmitting the cold source to a user cold end; and a power generation circuit is coupled with the second heat storage circuit and is used for converting the high-temperature heat energy into electric energy. Through the synergistic integration of multi-stage energy storage, hierarchical heat coupling and multi-end energy output, the application realizes efficient and full-grade cascade utilization of solar energy, significantly reduces heat loss, meets the multiple demands of users for power generation, heat supply and refrigeration, greatly improves the overall energy utilization efficiency of the system and avoids resource waste.

According to the carbon cycle ammonia production system and method based on chemical-looping water splitting, in the carbon cycle ammonia production system based on chemical-looping water splitting, a chemical-looping carbon cycle nitrogen-hydrogen cogeneration module combines a fuel reactor and a high-temperature solid carbon dioxide electrolytic cell in a chemical-looping process, and hydrogen-nitrogen cogeneration with zero carbon emission is achieved. According to the Harbin process ammonia preparation module, multi-stage compression and intermediate cooling are carried out on raw material gas, the system energy consumption is reduced, and moisture used for a steam reactor is preheated. Then, a multi-stage reactor is adopted in the ammonia production process, heat recovery and raw material recovery are implemented, and a chemical chain product is efficiently converted into ammonia gas. The concentrating solar thermoelectric steam co-production module adopts molten salt as a working medium and is combined with a reheat return Rankine cycle containing a heat regenerator to meet the heat and electricity requirements of the system. The system utilizes a chemical-looping water splitting technology to prepare high-purity ammonia gas under a zero-carbon condition, and has the advantages of high efficiency, low emission, high resource utilization and the like.