98results about "Steam generation using solar heat" patented technology

The systems of the present disclosure include a solar-powered steam Rankine cycle (SRC) subsystem to convert solar energy into thermal energy and store the thermal energy; an ejector refrigeration cycle (ERC) subsystem to provide a first refrigeration effect with a first range of temperature based on the thermal energy; an absorption refrigeration cycle (ARC) subsystem to provide a second refrigeration effect with a second range of temperature based on the thermal energy; a brine refrigeration cycle (BRC) subsystem to generate and store when there is no cooling demand and provide a third refrigeration effect with a third range of temperature based on the electrical power generated by the ERC subsystem and the ice being melted; and an adsorption refrigeration cycle (ADRC) subsystem to provide a fourth refrigeration effect with a fourth range of temperature based on the thermal energy.

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 invention relates to spraying dust removal equipment for preventing atmospheric pollution in a construction site, and belongs to the technical field of environment-friendly dust removal equipment, the spraying dust removal equipment comprises a steam turbine, an atomizing pump, a solar heat collector and a boiler, the boiler is filled with water, and the solar heat collector generates water vapor by heating the boiler. And then the steam enters the pressure storage tank through the back pressure valve, the bottom of the pressure storage tank is communicated with the steam turbine through the linkage electromagnetic valve, a working port of the spray pump is communicated with the output end of the steam turbine, and the spray pump is suitable for spraying water mist. During use, when the pressure in the boiler exceeds a limit value, water vapor enters the pressure storage tank through the back pressure valve. And then the high-pressure steam gathered in the pressure storage tank can be guided into the steam turbine to drive the steam turbine to operate, the spraying pump and the compression fan can be driven to rotate in the operation process of the steam turbine, and therefore airflow released by the steam turbine is output outwards, and mist water is sprayed outwards.

An absorber tube for a parabolic trough solar power plant is described. The absorber tube includes a glass pipe that extends from a first end to a second end of the parabolic trough. A helical pipe is enclosed within the glass pipe. The helical pipe is configured to hold water. A sand filled pipe is surrounded by the helical pipe. The absorber tube further includes an inner pipe, centered within the sand filled pipe and the inner pipe extends from the first end to the second end of the parabolic trough along a central axis of the glass pipe. A solenoid valve is connected between the helical pipe and the inner pipe. The solenoid valve is configured to block the water from entering the inner pipe during periods of high solar irradiance and release the water to the inner pipe during periods of low solar irradiance.

An installation (10) for producing electricity (12) and / or mechanical power, comprising: - a CCGT unit (18), - a splitter (26) for receiving and splitting flue gas (68) into a first gas flow (92) and a second gas flow (94), - a CCS unit (28) for receiving the first gas flow and storing CO2, - a renewable electricity production unit (30), - an electrolysis unit (32) for producing an oxygen flow (102), - a mixing unit (34) for receiving the second gas flow and at least part of the oxygen flow, and for producing a working fluid (60) of a gas turbine (20). The installation is configured for switching between: - a first operation mode, in which the renewable electricity production unit produces renewable electricity (36), and the electrolysis unit uses at least some of it, - a second operation mode, in which the renewable electricity production unit is idle, and the electrolysis unit uses electricity (38) from the CCGT unit or a local grid (40).

NUCLEAR STEAM SUPPLY SYSTEM AND METHOD This disclosure relates to a nuclear steam supply system, comprising: a nuclear power plant, a heat source circuit, a working fluid circuit, a steam consumer, and a steam heat accumulator, where the nuclear power plant is connected to the heat source circuit, the working fluid circuit is connected to the steam consumer and the steam heat accumulator, the steam heat accumulator is connected to the steam consumer, and the heat source circuit and the working fluid circuit are independent of each other. This disclosure allows for peak levelling load adjustment of the nuclear power plant and steam load adjustment of the steam consumer, while ensuring the operational safety of an electrical grid and a reactor. Summary figure: Fig. 1

The invention relates to the technical field of central air conditioners, in particular to a solar photovoltaic photo-thermal cold storage system and a central air conditioner cold storage method. The cold storage system comprises a photovoltaic photo-thermal assembly; the hot water circulation pipeline is connected with a cooling water channel of the photovoltaic photo-thermal assembly, a cooling water inlet is used for being connected with a building sewage input end, and water in the hot water circulation pipeline can be cooled under the action of building sewage; a water inlet of the vacuum evaporator is connected with a cooling water outlet of the photo-thermal evaporator, an air inlet of the vacuum evaporator is connected with a photo-thermal steam outlet of the photo-thermal evaporator, and the vacuum evaporator can absorb heat of building sewage through vacuum low-temperature evaporation and convey condensate water and residual water; the fire water tank is connected with the condensate water outlet and the residual water outlet of the vacuum evaporator; the air conditioner cold water heat exchanger is installed in the fire water tank, PVT low-grade heat energy can be directly utilized, and a low-energy-consumption system integrating building cold storage and sewage reuse is achieved. The cold storage method is based on the cold storage system.

The solar thermodynamic generator includes a quartz window placed on a metal shell to form an electromagnetic resonant cavity for receiving solar energy, a ceramic conduit placed within the metal shell, where a working medium is heated by solar energy within the ceramic conduit, a heat exchanger placed within a vacuum insulated oil tank, a steam generator placed within the vacuum insulated oil tank, a ceramic heating tube placed within a combustion chamber, and a turbine communicating with the steam generator through fifth and sixth pipelines. The present invention is environmentally friendly, safe, low-cost, highly efficient, zero-pollution, zero-emission, and unaffected by weather or environmental factors. Like natural gas, the present invention can be configured to generate electricity on a grid. Furthermore, after hydrogen fuel and hydrogen-silicon fuel are mixed and combusted, the waste hydrogen can be recycled and reused.

The systems of the present disclosure include a solar-powered steam Rankine cycle (SRC) subsystem to convert solar energy into thermal energy and store the thermal energy; an ejector refrigeration cycle (ERC) subsystem to provide a first refrigeration effect with a first range of temperature based on the thermal energy; an absorption refrigeration cycle (ARC) subsystem to provide a second refrigeration effect with a second range of temperature based on the thermal energy; a brine refrigeration cycle (BRC) subsystem to generate and store when there is no cooling demand and provide a third refrigeration effect with a third range of temperature based on the electrical power generated by the ERC subsystem and the ice being melted; and an adsorption refrigeration cycle (ADRC) subsystem to provide a fourth refrigeration effect with a fourth range of temperature based on the thermal energy.

An electricity generation system including an electricity generating plant with a turbine, a dynamo and a solar power plant having an absorber tube for a parabolic trough solar power plant that includes a glass pipe which extends from a first end to a second end of a parabolic trough, a helical pipe enclosed within the glass pipe. A sand filled pipe is surrounded by the helical pipe. An inner pipe extends from the first end to the second end of the parabolic trough along the central axis of the glass pipe. A solenoid valve is configured to block the water from entering the inner pipe when the solenoid valve is closed and release the water to the inner pipe when the solenoid valve is opened. The turbine is fluidly connected to the solar power plant to receive the steam and produce mechanical energy which rotates the dynamo.

The present invention belongs to the field of evaporative steam technology and specifically discloses a preheated solar-driven interface evaporative steam production system and method. The system comprises a support shell and a steam evaporation assembly disposed at the top of the support shell. The steam evaporation assembly and the inner bottom surface of the support shell are interconnected by multiple water conveying members to form a delivery channel. The steam evaporation assembly comprises a heat insulation layer, a heat absorption layer, and a preheating layer. A placement hole for the preheating layer is provided at the center of the top of the support shell. The outer periphery of the preheating layer and the lower end of the heat absorption layer are integrally formed and fit within the placement hole. A heat insulation layer is provided above the preheating layer. The lower end of the water conveying member is connected to the bottom of the support shell. The upper end of the water conveying member passes upward through the preheating layer and the heat insulation layer in sequence. An evaporation layer is fixedly provided along the edge of the heat insulation layer. The present invention can convert solar energy into thermal energy, which heats and evaporates seawater to form steam, thereby increasing the steam production rate and solving the problem of low solar energy utilization.

The invention discloses a system for exploiting thickened oil through cooperation of solar energy and industrial flue gas and a working method of the system, and belongs to the technical field of thickened oil exploitation auxiliary systems.In the system, a heliostat is used for reflecting and gathering sunlight to a heat absorber; the low-temperature storage tank is used for storing and transmitting cold thermochemical particles; the heat absorber communicates with the high-temperature storage tank; the fluidized bed heat exchanger is sequentially connected with a centrifugal high-pressure steam compressor and a high-pressure static mixer; the input end of the flue gas adsorption device is used for introducing industrial flue gas, the output end of the flue gas adsorption device is communicated with the flue gas analysis device, the carbon dioxide output end of the flue gas analysis device is communicated with the high-pressure static mixer, and the unutilized gas output end of the flue gas adsorption device is communicated to a supplementary gas source inlet of the fluidized bed heat exchanger; the high-pressure static mixer is used for collecting and mixing input media and outputting an efficient oil displacement system for oil and gas field thickened oil recovery. According to the invention, fossil energy consumption and carbon emission are reduced, the continuity of steam supply is ensured, the oil displacement effect is improved, and the reliability is realized.

The present invention provides a solar water splitting hydrogen production system coupled with photothermal power generation, belonging to the field of renewable energy utilization. The system includes a catalyst oxygen vacancy generation unit (catalyst deoxygenation unit) and a water splitting hydrogen production unit (hydrogen production unit) based on an oxygen vacancy catalyst. The catalyst deoxygenation unit is connected to the hydrogen production unit; the deoxygenation unit is used to generate photo-induced oxygen vacancies in the catalyst under short-wavelength sunlight and feed them into the hydrogen production unit; the hydrogen production unit includes a thermal reaction component and a first auxiliary component. The thermal reaction component is arranged below the catalyst deoxygenation unit and is respectively connected to the catalyst deoxygenation unit and the first auxiliary component. The thermal reaction component is used to collect long-wavelength sunlight to heat water vapor, decompose water under the action of the oxygen vacancy catalyst to produce hydrogen, and feed it into the first auxiliary component; the first auxiliary component is connected to the deoxygenation unit to separate the hydrogen and return the catalyst to the deoxygenation unit for circulation. The present invention realizes the co-production of green electricity and green hydrogen using full-band solar energy.

An installation for producing electricity and / or mechanical power, comprising: a CCGT unit, a splitter for receiving and splitting flue gas into a first gas flow and a second gas flow, a CCS unit for receiving the first gas flow and storing CO2, a renewable electricity production unit, an electrolysis unit for producing an oxygen flow, a mixing unit for receiving the second gas flow and at least part of the oxygen flow, and for producing a working fluid of a gas turbine.The installation is configured for switching between: a first operation mode, in which the renewable electricity production unit produces renewable electricity, and the electrolysis unit uses at least some of it, a second operation mode, in which the renewable electricity production unit is idle, and the electrolysis unit uses electricity from the CCGT unit or a local grid.

The invention discloses an efficient heat energy conversion device and method based on heat radiation, and belongs to the technical field of heat radiation, the efficient heat energy conversion device comprises a supporting frame, a heat radiation structure is arranged at the top of the supporting frame, the heat radiation structure is rotationally connected with the supporting frame, and a rotation driving structure is arranged on the supporting frame; the rotary driving structure is in transmission connection with the heat radiation structure, a heat energy conversion structure is arranged on the supporting frame, the heat energy conversion structure is communicated with the heat radiation structure, and a conversion power generation structure connected with the heat energy conversion structure is arranged on the supporting frame. In the process of receiving illumination, the groove type parabolic mirror can always face a solar beam; sunlight can be incident and focused on the heat collecting pipe at the optimal angle, the solar energy can be incident and focused on the heat collecting pipe at the optimal angle, 30%-40% more solar radiation energy can be received, and the heat collecting efficiency is improved by 20%-30%.

The invention relates to a hybrid hydrogen thermo-electric multi-function industrial scale power plant, a system including such a power plant and connected appliances, a convection oven, and a hot and cold thermal fluid supply method. The invention uses a thermal fluid for heating, a thermal fluid for cooling, heat to both heat and cool the respective thermal fluids, a renewable or waste energy source to generate electricity, and hydrogen to store energy for both heating, cooling, and electricity. Ultimately, the invention allows to work off the grid on an industrial scale thereby having minimal environmental impact.

The invention relates to the technical field of thermal power plant steam turbines, in particular to a method and device for improving the economical efficiency of a low-load steam turbine, electronic equipment and a storage medium. And solar fluctuation is dynamically adjusted based on a heat storage system in the solar steam generation system, the wet steam running time of the low-pressure cylinder is shortened, meanwhile, the heat storage system is dynamically controlled, and the opening degree of a water supply valve and the flow of heat conduction oil are adjusted to adapt to load changes. According to the method, the coal consumption is reduced, the emission pollution is reduced, the energy utilization efficiency is improved, the deep peak regulation capacity is enhanced, and the low-load economy and the system stability are remarkably improved.

The invention provides a photo-thermal power generation system, and belongs to the technical field of solar photo-thermal power generation. The photo-thermal power generation system provided by the invention comprises a mirror field; an air cooling tower; the heat collector is arranged at the top of the air cooling tower; the circulating assembly is arranged in the air cooling tower, and the circulating assembly is connected with the heat collector; the anti-vibration assembly is arranged below the heat collector; a steam generating assembly; the indirect air cooling assembly comprises a condensation part and a condensation liquid pump, the condensation part and the condensation liquid pump are both arranged outside the air cooling tower, the condensation part is connected with the steam generation assembly through a first pipeline and a second pipeline, and the condensation liquid pump is arranged on the first pipeline; the first heat exchanger is arranged on the first pipeline and connected with the circulation assembly. According to the photo-thermal power generation system, the heat collector is arranged at the top of the air cooling tower, a heat absorption tower does not need to be additionally arranged, and the production and construction cost is reduced. Meanwhile, the circulating assembly is arranged in the air cooling tower, so that heat loss existing when the environment temperature is low is reduced, and the heat exchange efficiency is improved.

An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. The delivered heat which may be used for processes including power generation and cogeneration. In one application, the energy storage system provides higher-temperature heat to a conventional lower-temperature heat source to boost the temperature of a thermal power cycle working fluid to a turbine, thereby increasing efficiency of the power cycle.

The present invention provides a multi-element thermal fluid generation system for heavy oil thermal recovery, which relates to the field of heavy oil thermal recovery and is characterized in that it includes a data acquisition module, an oil reservoir collaboration module, a dual-energy injection module and a transportation and injection module; the data acquisition module collects information such as oil reservoir temperature and pressure through a sensor network, and runs an energy balance model in combination with a data processing platform and an edge computing device to generate preliminary optimization parameters; the oil reservoir collaboration module uses a deep learning prediction model to analyze oil reservoir stability and recovery efficiency, and generates final optimization parameters through an optimization feedback unit to guide the dual-energy injection module to adjust the thermal fluid ratio, temperature and pressure; the dual-energy injection module generates saturated steam and high-temperature thermal fluid through a trough solar collector and a natural gas combustion device, and transmits the mixed steam and high-temperature thermal fluid to the transportation and injection module after being mixed by a dynamic thermal fluid control device; the transportation and injection module injects thermal fluid into the oil reservoir and monitors the status in real time to form a closed-loop control. The system optimizes thermal energy distribution and improves heavy oil recovery efficiency.

The invention belongs to the technical field of solar heat storage, and particularly relates to a solar heat storage device which comprises a water storage tank, an air guide pipe is connected to the upper end of the water storage tank and connected with a steam worm-gear generator, an electric pressure regulating valve is arranged on the air guide pipe, the steam worm-gear generator is electrically connected with an electric power storage cabinet, and a base is arranged in front of the water storage tank. A support assembly is arranged on the base and sequentially provided with a collecting lens and a heating box, the heating box directly faces the collecting lens, the upper end and the lower end of the heating box are connected with a water inlet pipe and a water outlet pipe respectively, the water outlet pipe is communicated with a water storage tank, the water inlet pipe is connected with the water outlet end of a water pump, and the water inlet end of the water pump is communicated with the water storage tank. The heating box is small in size, the size of the whole device is reduced, in winter, loss of water heat can be reduced, and the water heating efficiency is improved.

The application provides a heat collecting indirect air cooling type photo-thermal power generation system and belongs to the technical field of solar photo-thermal power generation. The heat collecting indirect air cooling type photo-thermal power generation system comprises a mirror field, an air cooling tower, a heat collector arranged at the top of the air cooling tower, a circulating assembly arranged in the air cooling tower, the circulating assembly being connected with the heat collector, an anti-vibration assembly arranged below the heat collector, a steam generating assembly, an indirect air cooling assembly comprising a condensing element and a condensing liquid pump, the condensing element and the condensing liquid pump being arranged outside the air cooling tower, the condensing element being connected with the steam generating assembly through a first pipeline and a second pipeline, the condensing liquid pump being arranged on the first pipeline, and a first heat exchanger arranged on the first pipeline and connected with the circulating assembly. The heat collector is arranged at the top of the air cooling tower, so that an additional heat absorbing tower is not needed, and the production and construction cost is reduced. Meanwhile, the circulating assembly is arranged in the air cooling tower, so that the heat loss existing when the ambient temperature is low is reduced, and the heat exchange efficiency is improved.

The present invention provides a physical-chemical coupled thermal energy storage system across day-night and seasons. The system mainly includes: a solar concentrating solar thermal mirror field, a phase change physical energy storage unit, a thermochemical energy storage unit, an output end heat exchanger, and related pipelines. Among them: the phase change physical energy storage unit is composed of a heat exchanger and a phase change energy storage material water tank, and the thermochemical energy storage unit is composed of a gas-solid phase thermochemical heat storage system, a steam generator, and a reaction gas supply water tank. The internal structure of the gas-solid phase thermochemical heat storage system is a coil and fin structure. The present invention can realize the energy storage regulation across the day-night span through physical energy storage, and at the same time realize the energy storage regulation across the season span through thermochemical energy storage, greatly reducing the fluctuation problem of the annual solar energy output and realizing the stable output of solar energy throughout the day and the whole year.

The invention provides a light-coal coupling power generation system and method with fused salt heat storage, and relates to the technical field of power generation. The system comprises a main steam conveying module used for conveying main steam to a steam turbine to do work so as to drive a power generator to generate power, and the main steam is generated by heating condensed water through hot molten salt or heating condensed water through fire coal combustion; the superheated steam conveying module is used for conveying superheated steam to a steam turbine to do work so as to drive a generator to generate electricity, and the superheated steam is generated by heating feed water through hot fused salt; and the condensing heat exchanger is used for receiving and cooling the dead steam discharged from the steam turbine, and the cooled dead steam becomes condensed water to be conveyed into the main steam conveying module so as to become main steam through hot molten salt heating or fire coal combustion heating. According to the light-coal coupling power generation system and method, the problem that in the prior art, due to instability or intermittency of solar energy, the light-coal coupling power generation system is frequently adjusted, and the service life of the light-coal coupling power generation system is short is solved.

The systems of the present disclosure include a solar-powered steam Rankine cycle (SRC) subsystem to convert solar energy into thermal energy and store the thermal energy; an ejector refrigeration cycle (ERC) subsystem to provide a first refrigeration effect with a first range of temperature based on the thermal energy; an absorption refrigeration cycle (ARC) subsystem to provide a second refrigeration effect with a second range of temperature based on the thermal energy; a brine refrigeration cycle (BRC) subsystem to generate and store when there is no cooling demand and provide a third refrigeration effect with a third range of temperature based on the electrical power generated by the ERC subsystem and the ice being melted; and an adsorption refrigeration cycle (ADRC) subsystem to provide a fourth refrigeration effect with a fourth range of temperature based on the thermal energy.

The invention discloses concrete pole constant-temperature and constant-humidity energy-saving maintenance equipment based on solar heat supply, and relates to the technical field of concrete pole steam maintenance, and the concrete pole constant-temperature and constant-humidity energy-saving maintenance equipment comprises a maintenance cabin fixedly mounted on the ground; through cooperation of the maintenance assembly and the gas distribution assembly, the device can conveniently utilize solar radiation to heat a steam water source, so that the heating energy consumption of the water source is reduced, the energy saving performance of the device is improved, meanwhile, the temperature and humidity sensor is matched to detect and control the maintenance temperature and humidity in real time, and the intelligence of the device is improved; a solar energy start-stop decision module performs fine analysis according to weather forecast and historical data, dynamically divides a'electricity storage period 'and a'electricity consumption period', and intelligently determines whether to start a solar energy mode based on a multi-threshold fusion mechanism; through self-adaptive adjustment of the weight coefficient, the system can gradually optimize a decision strategy in trial operation, solar energy can be utilized to the maximum extent under different meteorological conditions, and maintenance process interruption caused by insufficient power supply can be effectively avoided.

A method for generating electricity with a system having a water tank, an electricity generating plant and a parabolic trough solar power plant including transferring water from the water tank to the solar power plant. The water is received in a helical pipe located within a glass pipe encasing an absorber tube of a parabolic trough solar power plant. The glass pipe and the helical pipe extend from a first end to a second end of a parabolic trough along a central axis of the glass pipe an. During periods of high irradiance the water is converted in the helical pipe to steam by focusing solar radiation on the absorber tube. A sand filled pipe extends from the first end to the second end of the parabolic trough along the central axis of the glass pipe Steam is expelled from the helical pipe. During periods of low irradiance the water is released the water within the helical pipe to the inner pipe located within the sand filled pipe, converting the water to steam with the heated sand in the sand filled pipe, expelling the steam, transferring the steam to a turbine to generate mechanical energy in the turbine, and transferring the mechanical energy to generate electricity.

An installation for producing electricity and / or mechanical power, comprising: a CCGT unit, a splitter for receiving and splitting flue gas into a first gas flow and a second gas flow, a CCS unit for receiving the first gas flow and storing CO2, a renewable electricity production unit, an electrolysis unit for producing an oxygen flow, a mixing unit for receiving the second gas flow and at least part of the oxygen flow, and for producing a working fluid of a gas turbine.The installation is configured for switching between: a first operation mode, in which the renewable electricity production unit produces renewable electricity, and the electrolysis unit uses at least some of it, a second operation mode, in which the renewable electricity production unit is idle, and the electrolysis unit uses electricity from the CCGT unit or a local grid.

A solar collector includes a conduit for a working fluid and a parabolic trough reflector arranged to focus reflected sunlight onto the conduit. The parabolic trough reflector is arranged to pivot around the conduit.

The invention belongs to the technical field of evaporation steam, and particularly discloses a solar-driven interface evaporation steam preparation system and method based on preheating. The system comprises a supporting shell and a steam evaporation assembly arranged at the top end of the supporting shell; the steam evaporation assembly and the inner bottom face of the supporting shell are connected through a plurality of water conveying pieces to form a conveying channel, the steam evaporation assembly comprises a heat insulation layer, a heat absorption layer and a preheating layer, and a containing hole used for containing the preheating layer is formed in the center of the top end of the supporting shell. The periphery of the preheating layer and the lower end of the heat absorption layer are integrally formed and arranged in the containing hole in a matched mode, a heat insulation layer is arranged above the preheating layer, the lower end of the water conveying piece is connected to the bottom of the supporting shell, the upper end of the water conveying piece sequentially penetrates through the preheating layer and the heat insulation layer upwards, and an evaporation layer is fixedly arranged along the edge of the heat insulation layer. Solar energy can be converted into heat energy, seawater is heated and evaporated through the heat energy to form steam, the steam preparation rate is increased, and the problem that the solar energy utilization rate is low is solved.