47results about "Steam generation using solar heat" patented technology

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.

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.

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 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 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.

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 discloses a dynamic energy storage system for a tire factory, and the system achieves the dynamic balance of whole-plant-level energy through the cooperative work of a photo-thermal-photovoltaic-wind integrated collection system, a waste heat recovery network, a multi-energy complementary energy storage unit, a phase change energy storage device, an intelligent distribution pipe network, an intelligent control center, an electric heating system, an intelligent micro-grid module and a water supplementing system. The system integrates the functions of internal mixing, extrusion, molding, hot water and steam utilization or combined supply of a vulcanization workshop and the like, the comprehensive energy efficiency is high, and a green and efficient energy solution is provided for the tire industry.

The application discloses a device configuration method of a solar industrial steam system, belongs to the technical field of new energy system configuration, and can solve the problem of low utilization rate of existing technology devices. The method comprises the following steps: S1, determining a first heat collection area of a heat collection device and a first heat storage volume of a heat storage device in the solar industrial steam system according to operation parameters of the solar industrial steam system, a preset heating target and a preset heat collection time length; S2, adjusting the first heat collection area and the first heat storage volume according to each adjustment coefficient in a plurality of adjustment coefficients to obtain a second heat collection area and a second heat storage volume corresponding to each adjustment coefficient; S3, based on each device configuration scheme, simulating operation of the solar industrial steam system according to meteorological information and heating demand information, determining an operation result of each device configuration scheme, and determining an optimal configuration scheme from the plurality of device configuration schemes according to the operation result. The application is used for device configuration of the solar industrial steam 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 invention discloses a photo-thermal unit coordination control method and system, a power plant and equipment. The method comprises the steps that in the load increasing stage, an outlet adjusting valve of a first hot salt pump is controlled to be matched with a recirculation adjusting valve to increase the hot salt flow, and a second hot salt pump is controlled to be started and is parallel to the first hot salt pump to increase the hot salt flow; synchronously increasing the frequencies of the first hot salt pump and the second hot salt pump until the actual pressure of the unit is equal to the set pressure of the unit; in the load reduction stage, the frequency of the first hot salt pump and the frequency of the second hot salt pump are synchronously reduced until the lowest frequency threshold value is reached; gradually closing the outlet control valve of the second hot salt pump until the outlet control valve of the second hot salt pump is completely closed; and gradually closing the outlet control valve of the first hot salt pump until the actual pressure of the unit is equal to the set pressure of the unit. The matching requirements of the main steam pressure and the current load can be met, and precise coordination control over the photo-thermal unit is achieved.

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.

The present invention discloses a solar water working medium natural circulation saturated steam heat absorber, comprising a heat absorbing tube panel, wherein the heat absorbing tube panel is provided with multiple groups of vertically arranged tube groups, each group of tube groups including multiple heat absorbing pipes, each heat absorbing pipe having a straight pipe section in the middle and curved pipe sections at both ends, and the curved pipe sections at both ends of each heat absorbing pipe having different curvatures. The straight pipe sections of the multiple heat absorbing pipes in each group of tube groups are arranged parallel to each other, and the curved pipe sections at both ends are deflected into the same plane. The present invention provides a highly efficient and economical solar water working medium natural circulation saturated steam heat absorber covering all power levels. It has a simple structure and low cost, does not require a large heliostat field, and is suitable for distributed solar thermal utilization in industry, food, pharmaceuticals, and civil applications. The heat absorber uses natural circulation to generate saturated steam, and does not require a forced circulation pump. It uses solar energy as an energy source and does not generate any pollutant emissions or carbon emissions.

The application discloses a ventilation heat absorption tower, which comprises a radial thin-walled column, a thin-shell wall, an annular beam, a surface skin, a herringbone support, an equipment layer, a conversion layer and a combined roof. The tower structure top supports a molten salt heat absorber, which is connected with a molten salt pipeline, a cold molten salt tank, a hot molten salt tank and a steam generator in the structure, and together forms a heat absorption system. The structure is provided with an air inlet layer, which is connected with a ventilation device outside the structure, and an air outlet layer, which together constitute a natural ventilation direct air cooling system, realizing a ventilation heat absorption tower structure scheme, solving the problems of large power consumption of a traditional direct cooling system, large land occupation of an indirect cooling system, long construction period and high construction cost, and meanwhile, the structure has large overall rigidity, good stability and can easily meet the displacement limit value of the structure top caused by solar light gathering. The application can be widely applied to tower type photo-thermal power generation areas with different wind loads and seismic intensities.

A special solar energy water jacket heating furnace in vacuum mode for an oil field comprises a vacuum heating system and a water jacket furnace heating system; the vacuum heating system comprises a steam generator, a vacuum heater and an ejector; the water jacket furnace heating system comprises a water jacket furnace, a burner, a flue gas chamber, a U-shaped pipe and a chimney, the flue gas chamber and the U-shaped pipe are arranged inside the water jacket furnace, and an inlet and an outlet of the flue gas chamber are respectively connected with the burner and the chimney through flue gas pipes; and the vacuum heater is provided with a crude oil inlet and a crude oil outlet, the steam generator is provided with a first outlet and the first outlet is connected with the ejector. A method for heating crude oil is further disclosed.

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.

The invention relates to the technical field of energy storage and heat supply, and discloses a steam circulation energy storage control system which comprises a solar water heater, an underground energy storage device, a water storage pipe, a water lifting pipe, a water return pipe and a driving device. One end of the driving device is communicated with the water lifting pipe, and the other end of the driving device is communicated with a water inlet pipe opening of the solar water heater; the water storage pipe is arranged around the bottom of the underground energy storage device; the driving device is used for driving water in the water lifting pipe into the solar water heater and driving water in the solar water heater into the water storage pipe through the water return pipe; the solar water heater is used for heating water in the solar water heater through solar energy; the underground energy storage device is used for exchanging heat with the water storage pipe and storing the heat. Various technologies such as solar heat utilization, steam power circulation and underground energy storage are combined to solve the problems that the energy storage efficiency is low, and the energy consumption of an energy storage circulation power system is large.

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.

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).