27results about "Steam generation using solar heat" patented technology

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 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.

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 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.

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 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 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.

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 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 invention provides a coupling double-tank active solar photo-thermal boiler complementary multistage steam supply system and method. The system comprises a solar storage system, a fused salt circulation system and a thermal power heat supply system. The fused salt circulating system comprises a high-temperature tank, a low-temperature tank and a heat exchanger group; the fused salt input end of the high-temperature tank is connected with the fused salt output end of the solar storage system, and the fused salt output end of the high-temperature tank is connected with the fused salt input end of the heat exchanger set. The fused salt output end of the low-temperature tank is connected with the input end of the solar storage system, and the fused salt input end of the low-temperature tank is connected with the fused salt output end of the heat exchanger set. The thermal power heating system comprises a boiler, a regenerative system and a steam turbine, water inlets of the boiler and the regenerative system are connected with a water inlet of the heat exchanger set, and the steam output end of the heat exchanger set and the steam output end of the boiler are connected with the steam input end of the steam turbine. The steam output end of the heat exchanger set and the steam output end of the boiler are further connected with the steam supply system, the industrial steam supply requirement can be guaranteed, and the coal consumption of unit power generation can be reduced.

A system for providing electrical power includes a high temperature heat source, an ambient temperature heat sink, an ORC generator, a solar thermal collector, and an SDES device. The ORC generator includes a generator working fluid with a boiling temperature greater than an ambient temperature of the ambient temperature heat sink, and the generator working fluid receives heat from the high temperature heat source and exhausts heat to the ambient temperature heat sink. The solar thermal collector is in thermal communication with the high temperature heat source to heat the high temperature heat source. The solar thermal collector includes a photovoltaic (PV) module, and the solar thermal collector is configured to convert a first portion of sunlight to thermal energy and a second portion of the sunlight to electrical energy. The SDES device receives electrical energy from one of the ORC generator and the PV module.

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 invention relates to the technical field of coal-fired power plant deep peak regulation and energy storage, in particular to an energy storage peak regulation system which comprises a first-stage energy storage pipeline, a steam conveying pipeline and a controller. The first-stage energy storage pipeline comprises a heat collecting device, a first-stage energy storage device, a first-stage circulating fan and a first-stage heat exchanger which are sequentially connected through pipelines; gas circularly flows in the first-stage energy storage pipeline, the heat collection device is used for absorbing solar energy and converting the absorbed solar energy into heat energy so as to heat the gas flowing through the heat collection device, a solid heat storage material is arranged in the first-stage energy storage device, and the first-stage heat exchanger is used for exchanging heat with condensed water flowing out of the output end of the generator. The solid heat storage material is adopted to replace fused salt, so that the problems that due to low temperature, the fused salt crystallizes, the system operation is not smooth, and the operation efficiency is reduced are solved. And meanwhile, solar energy is utilized to heat the solid heat storage material, so that factory resources are fully utilized, the system operation energy consumption is reduced, and the operation cost is saved.

A solar collector that comprises 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.

It is a power storage device (30) and a method for storing electrical energy (E0) with a compressed air storage device (31) provided. The energy storage device (30) has a compressed air storage device (31) for storing energy (E1) in the form of compressed air generated with electrical energy (E0), and a sorbent storage device (32) for storing energy (E2) generated during the generation of the compressed air, wherein the compressed air storage device (31) has an expansion valve (311) for expanding compressed air stored in the compressed air storage device (31), wherein the sorbent storage device (32) has a first container (321) for receiving sorbent (S1), a second container (322) for storing sorbate (S2), a desorber (323) for converting the sorbent (S1) into the sorbate (S2), and an absorber (327) for converting the sorbate (S1) into the sorbent (S2), and wherein the expansion valve (311) and the sorbent storage device (32) are connected such that part of the energy (E3)which is released during the conversion of the sorbate (S1) into the sorbent (S2), can be supplied to the pressure relief valve (311) for the pressure relief of compressed air stored in the compressed air reservoir (31).

The invention discloses a solar energy and air source heat pump coupled gas-steam boiler feed water preheating system, and belongs to the technical field of industrial energy conservation. The system comprises a heat pump subsystem capable of switching heat sources, a gas-steam boiler system and an intelligent control system. The heat pump subsystem capable of switching the heat sources comprises a solar heat collector, a heat storage water tank, a variable frequency pump, an evaporator, an air cooling heat exchanger, a compressor, a condenser and an expansion valve. The solar heat collector, the heat storage water tank and the variable frequency pump form a first circulation loop through a pipeline; the evaporator, the air-cooled heat exchanger, the compressor, the condenser and the expansion valve form a second circulation loop through a pipeline; the intelligent control system comprises a solar irradiance sensor and a PLC controller. According to the system, through complementation of solar energy and the air source heat pump, gradient utilization of energy is achieved, all-weather stable preheating of boiler feed water is achieved, natural gas consumption is effectively reduced, carbon dioxide emission is reduced, and the comprehensive energy efficiency of the whole steam supply system is improved.

Systems and methods for operating an integrated electrical power plant. A site power output setpoint is received for an electrical power interconnection point that receives power from a combined cycle electrical power generation plant and a renewable energy electrical power generation plant. A thermal energy storage system provides heat to generate steam to drive a steam turbine of the combined cycle electrical generation plant. An indication of a total electrical output delivered to the electrical power interconnection point is received. Based on a difference between the indication and the setpoint, an adjustment is made to at least one of: steam generated by heat delivered from the thermal energy storage system; or electrical energy delivered by the renewable energy electrical power generation plant to generate thermal energy in the thermal energy storage system.

In various aspects, a method for maintaining steam production in a power plant using heat from a thermal storage medium in lieu of heat obtained from burning natural gas in duct burners and / or a combustion or fission process may be provided. The method may include heating up a thermal storage medium with electric heater elements or hot fluids with a heat exchanger. The method may include storing heat in the thermal storage medium for a period of time. The method may include generating a hot working fluid by transferring stored heat from the thermal storage medium to a working fluid that passes through the thermal storage medium, by means of at least one of convection, conduction, radiation, and transferring heat to a steam generation system directly using radiation. The method may also include using energy of the hot working fluid to generate additional electricity through a steam turbine.

A solar thermodynamic power generator includes: a quartz window placed on a metal shell to form an electromagnetic resonant cavity structure for receiving solar energy; a ceramic conduit placed in the metal shell, wherein a working medium is heated in the ceramic conduit by the solar energy; a heat exchanger placed in a vacuum insulation oil tank; a steam generator placed in the vacuum insulation oil tank; a ceramic heating tube placed in a combustion chamber; and a turbine communicating with the steam generator through a fifth pipeline and a sixth pipeline. The present invention is environmentally friendly, safe, low-cost, high-efficiency, pollution-free, emission-free, and not affected by natural weather or environment. Like natural gas, the present invention can be configured to perform grid-connected power generation. Furthermore, after the hydrogen fuel and the hydrogen silicon fuel are mixed and burned, waste hydrogen can be recycled and reused.

The application relates to a method and to a device for generating steam. Water (1) is fed into a structure (2) comprising at least one channel (3) for the flow of water and formed of metal. The structure is heated by means of an electrical element (4), and the water is vaporized in the channel within the structure. Steam pressure is measured in the channel or after the channel and the feed of water is controlled based on the pressure measurement and predetermined pressure limit values, and steam (5) is conducted out from the structure. Additionally, the application relates to the use of the method.

The application provides a solar steam generator, a blackening method of a three-dimensional porous material surface and application. The blackening method comprises the following steps: S1, placing the three-dimensional porous material in a mixed solution containing tannic acid and sodium alginate, performing immersion treatment, and obtaining the three-dimensional porous material with a wet surface; S2, placing the three-dimensional porous material with the wet surface in a solution containing Fe 3+ , and performing cross-linking treatment; S3, performing flushing and drying treatment on the three-dimensional porous material after the cross-linking treatment, and obtaining the three-dimensional porous material with a blackened surface. The solar steam generator prepared by the blackening method has a water evaporation rate of more than 2.00kg m ‑2 h ‑1 . The purification performance of the SA / TA-Fe 3+ modified porous material on seawater, dye wastewater and heavy metal wastewater makes it expected to become a candidate product of a high-performance solar steam generator, and has great commercial application value.

The invention discloses a system and a method for hydrogen production by coupling photo-thermal membrane distillation and photovoltaic electrolysis of seawater vapor, and relates to the technical field of electrolytic hydrogen production. The system comprises a material management unit, a photovoltaic power generation unit, a photovoltaic power generation monitoring unit and a photo-thermal electrolytic cell, and a photo-thermal film and a PEM electrolytic cell are integrated in the photo-thermal electrolytic cell, and the photo-thermal electrolytic cell is used for absorbing solar energy and heating seawater from the high-level water tank to generate water vapor, and meanwhile, the generated water vapor is electrolyzed to generate hydrogen and oxygen by utilizing electric energy provided by the photovoltaic power generation unit. According to the system, photovoltaic photo-thermal and a seawater desalination-PEM electrolytic hydrogen production system are coupled, double efficient conversion of'light-electricity 'and'light-heat' of renewable energy solar energy is achieved, the energy utilization efficiency of the whole system is improved, other external energy input is not needed, and high-purity energy hydrogen can be obtained only through solar energy and seawater.

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).

The invention provides a coupling double-tank active solar photo-thermal energy storage coal-fired unit two-stage steam supply system which comprises a solar energy storage subsystem, a fused salt heat storage and release subsystem, a first heat exchanger, a second heat exchanger and a coal-fired unit. The fused salt heat storage and release subsystem comprises a low-temperature fused salt tank and a high-temperature fused salt tank which are connected with a low-temperature side inlet and a low-temperature side outlet of the solar energy storage subsystem respectively, and a high-temperature side inlet and a high-temperature side outlet of the first heat exchanger are connected with an outlet of the high-temperature fused salt tank and a high-temperature side inlet of the second heat exchanger respectively; a high-temperature side outlet of the second heat exchanger is connected with an inlet of the low-temperature molten salt tank, the coal-fired unit comprises a boiler and a cylinder block, and a low-temperature side inlet of the second heat exchanger and a steam outlet of the boiler are connected with a steam inlet of the cylinder block. A steam exhaust port of the cylinder group is connected with a steam inlet of the boiler, a low-temperature side inlet of the first heat exchanger and a low-temperature side inlet of the second heat exchanger, and a low-temperature side outlet of the second heat exchanger is used for first industrial steam supply.

A system for producing electricity having a primary coolant loop having, in operable and fluid coupling, a vertical nuclear reactor, a vertical once-through steam generator, at least one external hot leg conduit, and at least one external hot leg conduit. The at least one external hot leg conduit fluidly is coupled with the vertical nuclear reactor and to the vertical once-through steam generator to deliver a primary coolant from the vertical nuclear reactor to the vertical once-through steam generator. The at least one external cold leg conduit is fluidly coupled with the vertical nuclear reactor to the vertical once-through steam generator to return the primary coolant from the vertical once-through steam generator back to the vertical nuclear reactor. At least one booster pump is operably coupled to the primary coolant loop to force flow of the primary coolant through the primary coolant loop during normal operation of the system.