31 results about "Solar power tower" patented technology

An oil recovery system and method is disclosed. The system includes a solar power tower for receiving a first portion of water from a water treatment device. The solar power tower heats the first portion of water directly using solar radiation and generates a first steam. Further, the system includes a boiler for receiving a second portion of water from the water treatment device. The boiler heats the second portion of water and generates a second steam. Further, the system includes a flow control device coupled to the solar power tower and the boiler to receive at least one of the first steam and the second steam. The flow control device injects at least one of the first steam and the second steam to an oil field.

The invention relates to a solar tower-typed high temperature-focusing heat-collecting steam boiler-steam turbine generating device; the device arranges solar heat-collecting units with the number of n on the ground around a tall tower; each solar heat-collecting unit consists of a plane reflector, a solar tracing sensor and a control mechanism thereof, traces the sun and reflects the sunshine of different positions to the focus position of the top of the tower, namely around the solar steam boiler; the solar steam boiler is heated to generate pressure steam to drive the steam turbine to rotate for driving the generator to generate alternating current which is used on-line after the transformation by a transformer.

A solar power tower solar receiver absorber including: an enclosure; at least one panel configured to be illuminated by solar flux; a core made of at least one material with heat conductivity at least partially encompassed by the enclosure; and a plurality of tubes passing through the core and extending substantially in a parallel direction with respect to the panel configured to be illuminated. The tube is configured for circulation of a fluid to be heated, for example a gas for operating a gas turbine.

An embodiment of the present invention may take the form of a system and method that may use at least one solar heating system to heat the fuel consumed by a turbomachine. An embodiment of the present invention may incorporate concentrated solar power (CSP). Generally, CSP systems incorporate a plurality of lenses, mirrors, or combinations thereof and a tracking system to focus a large area of sunlight forming a small concentrated beam of light. The concentrated light may then be used as a heat source. In an embodiment of the present invention, the heat source may be used to partially or completely heat the fuel consumed by a turbomachine. CSP systems may take the form of a solar trough system, a parabolic dish system, a solar power tower system, or the like.

The invention discloses a solar seawater desalination system and method, and relates to the field of seawater desalination. The system comprises a seawater storage tank, a solar light gathering cover,a fresh water storage tank, a seawater spraying and exhausting device, a heat gathering and conducting device, a fresh water collecting tank, an annular condenser, a solar reflecting mirror, a freshwater spraying condenser, a solar power generation system and a solar tower type seawater concentration and crystallization system. A plurality of layers of heat gathering units such as a solar reflecting mirror, a solar light gathering cover and the heat gathering and conducting device are adopted, seawater in the solar light gathering cover is rapidly heated to form saturated steam; the seawaterspraying and exhausting device is used for increasing the evaporation speed and evaporation capacity of seawater, steam is condensed into fresh water in an omnibearing mode through multiple condensers such as a solar light gathering cover, an annular condenser and a fresh water jet condenser, the seawater evaporation capacity is increased through the solar tower type seawater concentration and crystallization system, and the desalination efficiency is improved. Solar energy is utilized, external energy is not needed, more energy is saved, and the system has the advantages of novel process, simple structure, high desalination rate, low operation cost and the like.

The invention discloses a heliostat field optimization scheduling control method for a solar tower type photo-thermal power station. The method comprises the following steps: establishing a frameworkof a solar tower type photo-thermal power station model; establishing a modeling process of heliostat field condensation and optimal scheduling control of a solar tower type photo-thermal power station; establishing a mathematical model of a spliced reflecting surface; establishing a specular reflection point and a sunlight cone model; establishing a direction and position model of a main incidentlight; utilizing a coordinate transformation method to establish a direction and position model of reflected light; establishing a heliostat sun tracking motion model, counting the number of light rays at different drop point positions, and calculating energy flux density distribution; establishing a tracking error model of the heliostat, and simulating an energy flux density distribution condition when a tracking error exists; establishing an optimal scheduling control model of a heliostat field; solving by using a genetic algorithm to obtain an optimized scheduling control strategy. the method can accurately simulate heliostat field condensation characteristics and energy flux density distribution on the surface of a heat absorber, and can also homogenize the energy flux density on thesurface of the heat absorber.

The invention discloses a terrestrial heat-solar energy power generating system based on a sCO2 brayton cycle. The system comprises the SCO2 brayton cycle, a CO2 plume terrestrial heat system and a tower type solar energy system used as an auxiliary heat source. The sCO2 brayton cycle comprises a turbine, a high-temperature regenerator, a low-temperature regenerator, a cooler, a main compressor and a re-compressor. The CO2 plume terrestrial heat system comprises an injection well, a production well and a separator. The tower type solar energy system comprises a solar energy tower, a heliostatfield, an absorber, a high-temperature molten salt tank, a low-temperature molten salt tank, a heat exchanger, a molten salt pump and the like. According to the power generating system, through coupling of the sCO2 re-compression brayton cycle, the CO2 plume terrestrial heat system and the tower type solar energy system, a CO2 sealing system and a terrestrial heat exploitation system are combined,meanwhile, the utilization rate and the cycle heat efficiency of medium-low-temperature terrestrial heat resources are improved, and the cost of terrestrial heat exploitation is reduced.

Air heat energy is derived from solar energy, and is a renewable energy source which is inexhaustible. According to the invention, a specific system structure is designed to achieve low-cost and uninterrupted air heat energy power generation. The system is composed of a downdraught tower (1), a high pressure nozzle (2), a cooling medium conveyer pipe (3), a turbine generator set (4) and a residual liquid outlet (5). During the power generation process, the downdraught tower spurts the cooling medium and makes the cooling medium be vaporized, air in the downdraught tower is cooled, and downdraught is obtained in the downdraught tower to promote an engine to generate power. Compared with a solar energy tower power generation method in foreign countries, the air heat energy power generation method is advantaged in that the cost is low, land is saved, and the air heat energy power generation method is not limited by sunset, and is more environmentally-friendly, and is higher in installed capacity and the like.

The invention provides an automatic-control efficient solar power tower, which comprises a support device, a main tower pole arranged in an accessory device, a lower support ring, a lower bracket, a middle support ring, a middle bracket, an upper support ring, an upper bracket, a lightning rod, a photovoltaic panel, a power storage column and an automatic controller. The main tower pole is arranged at the center of the support device. The outer side of the lower support ring is connected with the inner side of the lower end of the lower bracket. The upper end of the lower bracket is connected with the lower end of the middle bracket. The outer side of the middle support ring is connected with the inner side of the lower end of the middle bracket. The upper end of the middle bracket is connected with the lower end of the upper bracket. The outer side of the upper support ring is connected with the inner side of the lower end of the upper bracket. The upper end of the upper bracket is connected with a fixed ring at the lower end of the lightning rod. The lightning rod is arranged at the upper end of the upper bracket. The photovoltaic panel is arranged on the outer side of the lower bracket, the middle bracket and the upper bracket. The power storage column is arranged on the outer side of the upper section, the middle section and the lower section of the main tower pole. The automatic controller is arranged on the inner side of the bottom of the main tower pole. The automatic-control efficient solar power tower is superior in structural performance, wherein the field, the space, the solar energy and the light energy are fully utilized. Moreover, the automatic-control efficient solar power tower is multiple in function, wide in application range, high in efficiency, energy-saving, environment-friendly, low in manufacturing cost, and extremely remarkable in popularization and application comprehensive benefit.

The invention relates to an asymmetric solar receiver suitable for its installation in heliostat tower solar power plants, wherein said receiver is adapted to cover at least an angular region of around a tower, and wherein the effective surface density of the receiver for receiving radiation varies depending on its orientation over the covered angular region thereof. The effective surface of said receiver is preferably made of one or more panels and, more preferably, the receiver comprises at least two panels, wherein at least one of the panels comprises a smaller height than the other panels. The invention also relates to a solar tower comprising said receiver, a solar field comprising said tower, a solar power plant comprising said solar field, and a process for installing a solar field.

The invention provides a solar tower-type thermal power generation special-shaped heliostat which comprises a heliostat unit reflector (1), longitudinal supports, a column (5) and a transmission box (6). The transmission box (6) is arranged on the upper flange of the column (5). Two sides of the transmission box (6) are provided with a horizontal shaft respectively. Two first longitudinal supports (4) are respectively arranged on left and right horizontal shafts (6), and are bilaterally symmetrical along the horizontal rotation center of the heliostat on one side close to the transmission box (6). Two second longitudinal supports (3) are respectively arranged on left and right horizontal shafts, are close to the first longitudinal supports (4), and are bilaterally symmetrical along the horizontal rotation center of the heliostat on the outer side of the first longitudinal supports (4). The third longitudinal support (2) and the fourth longitudinal support (8) are symmetrically arranged on the outermost sides of left and right horizontal shafts, and are bilaterally symmetrical along the horizontal rotation center of the heliostat. The outer contour of a truss formed by all longitudinal supports is an isosceles triangle. The heliostat unit reflector (1) is arranged on the truss formed by all longitudinal supports.

A solar power plant for generating steam is comprised of a spherical shell, the interior of which is sealed from the outside atmosphere and which is mounted adjacent the top of a vertical tower. A plurality of heliostats surrounds the tower and the direct sunrays onto the sphere for heating the same sphere. A spray nozzle within the sphere directs water supplied to it from an external source onto the interior surface of the sphere to create steam. The steam is withdrawn and directed to a turbine or the like for generating electricity. A motor rotates the sphere about its vertical axis thereby regularly exposing a different portion of the sphere to the heliostats to prevent the sphere from melting.