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201 results about "Heliostat" patented technology

A heliostat (from helios, the Greek word for sun, and stat, as in stationary) is a device that includes a mirror, usually a plane mirror, which turns so as to keep reflecting sunlight toward a predetermined target, compensating for the sun's apparent motions in the sky. The target may be a physical object, distant from the heliostat, or a direction in space. To do this, the reflective surface of the mirror is kept perpendicular to the bisector of the angle between the directions of the sun and the target as seen from the mirror. In almost every case, the target is stationary relative to the heliostat, so the light is reflected in a fixed direction. According to contemporary sources the heliostata, as it was called at first, was invented by Willem 's Gravesande (1688-1742). Other contenders are Giovanni Alfonso Borelli (1608-1679) and Daniel Gabriel Fahrenheit (1686-1736).

Scheduling method of large-scale heliostat field artificial light source and camera cooperative calibration heliostat

The invention relates to the field of heliostat calibration, and discloses a scheduling method for calibrating heliostats through cooperation of artificial light sources and cameras in a large-scale heliostat field, and the method comprises the following steps: determining the heliostat range covered by each camera, determining the heliostat range covered by each artificial light source, and determining the heliostat range covered by each camera; the method comprises the following steps: determining the center and size of a light spot in an image shot by a camera when the heliostats are calibrated, determining the heliostats which can be calibrated in the coverage range of each artificial light source-camera combination, regarding each effective calibration combination as a node to construct an undirected graph, dividing the nodes into a plurality of groups through a graph grouping algorithm, and ensuring that the nodes in the same group are not connected with each other, therefore, all combinations in the same group can execute calibration in parallel. According to the method disclosed by the invention, the problem of affiliation misjudgment caused by light spot interference between heliostats is solved, possible shadow and shielding problems are avoided, dynamic scheduling of the artificial light source and the camera is realized, and invalid operation time is shortened.
Owner:SEPCOIII ELECTRIC POWER CONSTR CO LTD

Bonding sheet of high-precision heliostat reflecting surface supporting assembly

The utility model relates to a bonding sheet of a high-precision heliostat reflecting surface supporting assembly, which comprises a bonding sheet main body, a clamping mechanism is arranged on the lower side of the bonding sheet main body, the clamping mechanism comprises a hollow inserting rod, a rotating shaft, a tooth column and four clamping blocks, the rotating shaft is rotatably arranged on one side of the inner wall of the rotating shaft, and the tooth column is arranged on the other side of the rotating shaft. The tooth column is fixedly installed at one end of the rotating shaft, four clamping grooves are formed in the circumferential side of the hollow inserting rod, the clamping blocks are installed in the clamping grooves in a sliding mode, and a tooth plate is fixedly installed on one side of each clamping block and engaged with the tooth column. By means of the clamping mechanism, when the bonding sheet is installed on the supporting assembly, a worker can conveniently and rapidly install the bonding sheet on the supporting assembly, the subsequent worker can conveniently disassemble the bonding sheet, and therefore the using convenience of the bonding sheet is improved.
Owner:FIVE STAR ELECTRIC TOOLS JINHUA CITY

Error compensation method for heat absorption screen of tower type photo-thermal power station and automatic operation system for tower type photo-thermal power station

The invention provides an error compensation method for a heat absorption screen of a tower type photo-thermal power station and an automatic operation system for the tower type photo-thermal power station. The method is applied to a control system of a tower-type photo-thermal power station, and comprises the following steps: dividing an annual time interval to obtain a plurality of characteristic time periods; according to corresponding target point positions configured by a control system, compensation parameters used for adjusting the target point positions in the different characteristic time periods are generated, and the compensation parameters are stored in the control system; in the preheating stage of the tower type photo-thermal power station, the compensation parameter of the corresponding target point is read according to the characteristic time period to which the current date belongs; and sending the compensation parameters to a control system of the tower-type photo-thermal power station, adjusting the target point positions of the heat absorption areas through the control system, and sending the target point positions to corresponding heliostat controllers so as to carry out attitude adjustment compensation on the heliostats. According to the technical scheme, the preheating efficiency can be improved.
Owner:BEIJING JUSHUHE TECH CO LTD

A heliostat calibration method with self-correction of calibration equipment

The present invention discloses a heliostat calibration method using a self-correcting calibration device, comprising the following steps: setting initial parameters of the calibration device and initial parameters of the heliostat motion model, calculating a theoretical heliostat posture value in which the center of the heliostat light spot falls exactly on the center of a camera; calibrating each heliostat using the calibration device to obtain a heliostat posture calibration value; constructing a normal / abnormal calibration result statistical table to determine which calibration devices are abnormal; correcting abnormal calibration devices; recalibrating each heliostat using the corrected calibration device, reconstructing a normal / abnormal calibration result statistical table to determine which heliostats are abnormal; and calibrating heliostats determined to be abnormal. The calibration method disclosed by the present invention can eliminate the influence of errors in the calibration system itself, reduce the period of regular manual calibration of the calibration system, and improve the accuracy of heliostat calibration.
Owner:SEPCOIII ELECTRIC POWER CONSTR CO LTD

Methods And Systems For Separating Metals

Methods and systems for separating a first metal from a metal-containing feed stream are provided. The method can include applying solar energy, for example, by focusing one or more mirrors in one or more heliostats, to heat a metal-containing feed stream in a heating zone to a first temperature to produce a first vapor including the first metal. The first vapor can be condensed in a condensation zone to produce a first liquid including the first metal, and the first liquid can be collected. The system can include a separation unit include a heating zone in fluid communication with a condensation zone and a means for applying solar energy to heat a metal-containing feed stream disposed in the heating zone.
Owner:NANT HOLDINGS IP LLC

Tower type photo-thermal system aiming method and device

The invention relates to the technical field of energy storage and new energy power generation, and discloses a tower-type photo-thermal system aiming method and device.The method comprises the steps that a relative coordinate system of the position of a heat absorber, the position of a heliostat and the position of the sun is established; calculating an independent light spot of reflection light corresponding to each heliostat based on the position of the heat absorber, and marking the light spot of which the drop point is the heat absorber as an incident light spot; overlapping all the incident light spots to obtain an initial combined light spot; the initial combined spot is adjusted based on a heat absorber acceptable spot upper limit. The invention provides a light spot simulation, aiming strategy determination and combined light spot detection and correction method and an aiming point determination method of a photo-thermal power station, realizes a heliostat light spot offset and aiming center correction method aiming at a concentrating photovoltaic part, improves the energy utilization rate, and improves the energy utilization rate. And a hardware arrangement strategy provided by the invention can effectively ensure the safety of the heat absorber.
Owner:SPIC QINGHAI PHOTOVOLTAIC IND INNOVATION CENT CO LTD +2

heliostat

1. Name of the design product: heliostat. 2. Use of the design product: heliostat is an optical device that can automatically track the sun and reflect sunlight to a fixed target. 3. Design points of the design product: in the combination of shape and pattern. 4. Picture or photo that best indicates the design points: perspective view.
Owner:HENGJI NENGMAI NEW ENERGY TECH CO LTD +1

Heliostat field layout optimization method, equipment, medium and product

The invention discloses a heliostat field layout optimization method and device, a medium and a product, and relates to the field of photo-thermal power generation. The method comprises the following steps of: discretizing a solar cone into a plurality of light rays, simulating a propagation path of the light rays in a heliostat field by adopting a Monte Carlo ray tracing method, and further calculating shadow shielding efficiency and heat collector cutoff efficiency; calculating the comprehensive optical efficiency of the single-sided heliostats in the heliostat field according to the shadow shielding efficiency and the heat collector cut-off efficiency, and further calculating the annual average optical efficiency and the annual average output heat power of the heliostat field; the annual average optical efficiency and the annual average output thermal power are used as objective functions of a non-dominated sorting genetic algorithm, heliostat field layout is optimized, and a Pareto optimal solution set is obtained; and a weighted maximum satisfaction method is adopted to make a decision, and an optimal layout scheme of the heliostat field is selected from the Pareto optimal solution set. By improving the accuracy of optical efficiency calculation in the heliostat field layout optimization process, the energy efficiency of the heliostat field is maximized.
Owner:POLAR RES INST OF CHINA +1

Tower type photovoltaic power generation device

The application belongs to the technical field of solar photovoltaic power generation, and particularly relates to a tower type photovoltaic power generation device, which comprises a tower, a heliostat and a receiver, the tower is vertically installed on the ground, the receiver is fixedly installed on the top of the tower, the number of the heliostats is multiple, the multiple heliostats are sequentially arranged on the ground, and the tower is arranged at the middle position in the multiple heliostats; the controller is used for controlling the power supply to pass through a group of electric conductors to electrify the electromagnetic ring plate, the electromagnetic ring plate emits the magnetism to repel the dust wiping magnetic plate, the dust wiping magnetic plate is driven by the magnetic repulsion force of the electromagnetic ring plate to move the slag scraping block downward, the slag scraping block scrapes and wipes the receiver and the wind measuring ring when moving, the dirt and dust on the surface of the receiver and the wind measuring ring are wiped off, the function of cleaning dirt is achieved, and the flying sand and dust falling on the surface of the receiver is prevented from affecting the receiver to receive the light reflected by the heliostat, so that the photovoltaic power generation operation is more favorable.
Owner:JIANGSU BAOJUN NEW MATERIAL TECH CO LTD

Solar heliostat with pneumatic flow guide load shedding and friction damping vibration attenuation functions

A solar heliostat with pneumatic flow guide load shedding and friction damping vibration attenuation functions comprises a main beam, a plurality of auxiliary beams perpendicularly fixed to the main beam, a connecting piece fixed to the main beam, a plurality of inclined struts connecting the connecting piece and the auxiliary beams and the like. The supporting rod is fixed to the main beam, the friction damper is installed at the tail end of the supporting rod, the steel cables are connected with the friction damper, the main beam and the auxiliary beam respectively, and the triangular-prism-shaped covering body wraps the inclined struts in an attached mode. The friction damper comprises a friction base body, a friction element connected with a steel cable, a pressing plate matched with a friction concave surface of the friction base body to clamp the friction element, a pressure adjusting structure A for adjusting the pressing force of the pressing plate, a guide roller for guiding the steel cable connected with the friction element, and a pressure adjusting structure B for adjusting the tension force of the connected steel cable, according to the invention, airflow separation is guided to reduce the wind load through the prism aerodynamic configuration on the back of the heliostat; the friction force of each friction element and the pre-tightening force of the connected steel cable are independently set, the outer rigidity of the heliostat surface is enhanced, wind disturbance vibration is reduced, and the service optical precision is improved.
Owner:HUNAN UNIV OF SCI & TECH

Heliostat fixing structure and heliostat

The utility model discloses a heliostat fixing structure and a heliostat. The heliostat fixing structure comprises a lens, a lens holder and a lens frame, and the lens holder is located between the lens and the lens frame. The heliostat fixing structure further comprises a plurality of first adjustable connecting pieces and a plurality of second adjustable connecting pieces, and the first adjustable connecting pieces and the second adjustable connecting pieces are mutually independent. The first adjustable connecting piece is connected between the lens and the lens support and is used for adjusting the radian of the lens; and the second adjustable connecting piece is connected between the mirror holder and the mirror bracket and is used for adjusting the relative position of the mirror holder and the mirror bracket. According to the heliostat fixing structure, the radian and the position of the lens can be independently regulated and controlled, so that the control difficulty of the lens is reduced, the control precision of the radian and the position is improved, the heliostat fixing structure can meet the regulation and control requirements of the optimal radian surface type of the lens, and meanwhile, the heliostat fixing structure can be accurately positioned and connected with a lens bracket. In addition, the problem that the lenses are broken under the influence of external force when directly connected with the spectacle frame is solved, and the service life of the lenses is prolonged.
Owner:INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES +1

Push rod type heliostat support for solar thermal power generation

The application relates to the technical field of photo-thermal power generation and discloses a push rod type heliostat support for photo-thermal power generation, which comprises a base, a supporting column rotatably arranged on the base, a mounting seat hingedly arranged at the top end of the supporting column, an azimuth angle adjusting mechanism arranged on the base and used for pushing the supporting column to rotate so as to adjust the azimuth angle of the heliostat, and a height angle adjusting mechanism arranged on the supporting column and used for pushing the mounting seat to adjust the height angle of the heliostat. In the application, when the heliostat is installed, the third electric push rod is used to drive the descending push disc to descend, and then the supporting frame is rotated upwards around the pin shaft of the second hinge base as the rotating center, so that the folding degrees of the supporting frames are synchronously adjusted, the supporting posture is changed through the supporting frame, and the installation of the heliostat is matched, thereby solving the problem that the supporting structure of the heliostat in the prior art cannot be adaptively adjusted according to the shape and size of the heliostat.
Owner:中电建武汉铁塔有限公司

Methods And Systems For Separating Metals

Methods and systems for separating a first metal and an impurity from a metal-containing feed stream are provided. The method can include applying solar energy, for example, by focusing one or more mirrors in one or more heliostats, to heat a metal-containing feed stream in a heating zone to a first temperature to produce a first vapor including the first metal. The first vapor can be condensed in a condensation zone to produce a first liquid including the first metal, and the first liquid can be collected. The system can include a separation unit include a heating zone in fluid communication with a condensation zone and a means for applying solar energy to heat a metal-containing feed stream disposed in the heating zone.
Owner:NANT HOLDINGS IP LLC

Rapid calculation method for shadow shielding efficiency of tower-type photo-thermal mirror field

The invention relates to the field of tower-type solar power generation, and discloses a tower-type photo-thermal mirror field shadow shielding efficiency rapid calculation method, which comprises the following steps: dividing a mirror field into a plurality of square grids according to coordinate data of heliostats, and determining the grid to which each heliostat belongs; for each heliostat, determining a neighbor heliostat of the heliostat; re-dividing the heliostat field into a plurality of square grids, and randomly selecting a heliostat from each grid as a typical heliostat; for each typical heliostat, calculating the shadow shielding proportion generated by the neighbor heliostat, and taking the shadow shielding proportion of the typical heliostat as the shadow shielding proportion of the grid where the typical heliostat is located; and the shadow shielding proportions of all typical heliostats are calculated, so that the shadow shielding efficiency of the whole heliostat field is calculated. According to the method disclosed by the invention, the calculation speed of the shadow shielding efficiency is improved while the calculation precision is ensured, and the balance point of the calculation precision and the calculation speed can be adjusted through different values of the parameters.
Owner:SEPCOIII ELECTRIC POWER CONSTR CO LTD

Autonomous domestic heliostat with automatic calibration via accelerometer and solar aiming

The invention relates to a device for reflecting daylight in a fixed direction chosen by the user, despite the sun's movement. The device is distinguished by its ability to be placed in any position and requires no calibration by the user. It positions itself in the Earth's frame of reference using an accelerometer coupled to a solar sighting system, which allows it to determine its position in the Earth's frame of reference and orient the mirror to maintain a constant direction of the reflected beam. The beam is unaffected by any cast shadows, and the system's accuracy is increased compared to compass-based devices. (Shorthand figure: Figure 1)
Owner:VERDOOT VINCENT

Heliostat mirror

The utility model provides a heliostat mirror frame, include: main girder, set up first support layer on main girder, the second support layer who is configured for bearing sub mirror, second support layer includes a plurality of second support frame interval setting on first support layer, and at least two second support frames form a sub mirror mounting area for bearing sub mirror, at least part second support frame's length is different, and / or, at least part second support frame's extension direction is different to form different sub mirror mounting area. The utility model provides technical scheme to design to a plurality of second support frame length and extension direction, make a plurality of sub mirror mounting area formed by a plurality of second support frame have at least part difference, and then make a plurality of sub mirror mounting area can be according to actual demand and splice the heliostat of different contour and install splice out different shape contour, be favorable to according to actual environment and other factors more accurately design and control the focusing effect of heliostat, improve photo-thermal conversion efficiency.
Owner:ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD

A heliostat control system image acquisition module online calibration method

The application belongs to the technical field of photo-thermal power generation, and particularly discloses a kind of heliostat control system image acquisition module online calibration method, including mirror surface posture measuring equipment and computing device;The computing device obtains data from the mirror surface posture measuring equipment and the image acquisition module by wireless or wired mode.The mirror surface posture measuring equipment is used to measure the three-dimensional coordinates, latitude and longitude and altitude information of heliostat mirror surface angle point;The computing device is used for mirror surface posture resolving, controls the image acquisition module to collect image, saves image, identifies the sun image center image coordinate, image acquisition module posture resolving, heliostat mirror surface and image acquisition module angle deviation amount resolving.The application is based on heliostat posture and sun track information resolving heliostat control system image acquisition module actual posture, realizes a kind of high efficiency, high precision heliostat control system image acquisition module online calibration.
Owner:XINCHEN SOLAR THERMAL (SHANGHAI) NEW ENERGY CO LTD

Method for measuring pointing error of heliostat by using moonlight and camera

The invention belongs to the technical field of heliostat measurement, and particularly relates to a method for measuring the pointing error of a heliostat by using moonlight and a camera, which comprises the following steps: rotating the heliostat, and guiding the moonlight reflected by the heliostat to the camera; detecting the actual rotation angle of the heliostat when the center of the reflected light beam is located at the camera position; meanwhile, the theoretical rotation angle of the heliostat at the position is calculated based on the heliostat coordinates, the camera coordinates and the moonlight azimuth vector; the difference between the actual rotation angle and the theoretical rotation angle is the pointing error of the heliostat at the current position. The method has the advantages that the moon orientation naturally changes along with time, infinite measurement orientations can be provided theoretically, an unmanned aerial vehicle or an additional calibration tower is not needed, and therefore the system cost is remarkably reduced.
Owner:SEPCOIII ELECTRIC POWER CONSTR CO LTD

Energy-saving electric push rod for solar photo-thermal power generation

The invention discloses an energy-saving electric push rod for solar photo-thermal power generation, which comprises a push rod main assembly, an automatic lubricating assembly and an automatic cooling assembly, and is characterized in that the push rod main assembly is composed of a driving motor, a multi-stage gear set, a transmission case, a ball screw, a screw nut, a connecting rod and a sleeve; the multi-stage gear set is used for completing heliostat tracking driving in a solar photo-thermal power generation system and is rotationally connected between the inner walls of the transmission case. Through the linkage design of the oil pumping mechanism and the pushing mechanism, the piston rod is driven by the reciprocating motion of the lead screw nut to automatically supplement lubricating oil to the elastic liquid storage bag, when the pressure in the liquid storage bag reaches a preset value, the pressure valve is automatically opened, oil is synchronously and accurately supplied to the ball screw and the multi-stage gear set through the double lubricating pipelines, and the working efficiency is improved. And external power driving is not needed, and a self-lubricating mode of supplying while running is achieved.
Owner:CHANGZHOU MCHI MECHANICAL & ELECTRICAL CO LTD

Heliostat sub-mirror mounting structure based on pouring sealant bonding and heliostat

The utility model belongs to the technical field of heliostats, and particularly relates to a heliostat sub-mirror installation structure based on pouring sealant bonding and a heliostat, the heliostat sub-mirror installation structure comprises a purline, a connecting rod, a compression blocking piece and a plug, the purline is fixed on a torque beam of the heliostat through a truss, a groove is formed in one side of the purline, the compression blocking piece is arranged in the groove, and the connecting rod is connected with the plug. The bottom of the groove is provided with a through hole, the connecting rod penetrates through the through hole, the first end of the connecting rod is fixed in the pouring sealant in the filling space, the second end of the connecting rod extends out of the bottom face of the purline and is connected with the heliostat mirror, and the plug is arranged on the connecting rod in a sleeved mode and located at the bottom of the groove. According to the method, traditional bolt connection is replaced with pouring sealant bonding, the method of overall positioning and inverted gluing is combined, the technical problems that in the prior art, assembly errors are accumulated, the adaptability of a fastening mode is poor, and the assembly efficiency is low are solved, high-precision and stress-deformation-free assembly of the heliostat sub-mirror is achieved, and the assembly efficiency and the surface type consistency are improved.
Owner:HENGJI NENGMAI NEW ENERGY TECH CO LTD

A heliostat mirror type detection device

This utility model discloses a heliostat surface shape inspection device, relating to the field of solar thermal power generation technology. The device includes a support assembly, a moving guide rail, a first inspection assembly, and a second inspection assembly. The moving guide rail connects to the support assembly, and the first and second inspection assemblies are movably mounted on the guide rail. By placing the heliostat within the support assembly, the first and second inspection assemblies respectively inspect the surface shape of the heliostat. During the inspection process, the first inspection assembly performs a comprehensive surface shape inspection of the heliostat, quickly determining whether there are any problems with the surface shape, such as issues in a specific area. Simultaneously, the surface shape of the heliostat affects the size and shape of the light spot. After adjustments to the sub-mirrors, the second inspection assembly can immediately and quickly inspect specific areas of the sub-mirrors to verify whether the light spot has been improved.
Owner:LONGYOU SHENGTANG (SHAANXI) INFORMATION TECHNOLOGY CO LTD

Intelligent correction control method of heliostat based on four-quadrant weather monitoring and intelligent correction control system of tower type photo-thermal power station

PendingCN122387197AHeliostatControl system
This application provides a heliostat intelligent correction control method based on four-quadrant meteorological monitoring and an intelligent correction control system for a tower solar thermal power plant. The method includes: collecting real-time DNI values ​​from meteorological stations in the southeast, southwest, northwest, and northeast quadrants of the tower solar thermal power plant's mirror field, as well as the time-series operating parameters of the heliostat, to obtain real-time monitoring data; determining the operating status of each quadrant based on the real-time monitoring data, including real-time DNI values, DNI change slopes, and fluctuation amplitudes, whereby the operating status includes normal or abnormal; and executing a preset correction strategy based on the operating status of each quadrant. The technical solution of this application provides a heliostat correction method that simultaneously addresses systematic deviation correction and suppresses random meteorological interference, thereby improving the accuracy of angle prediction and tracking stability under complex weather conditions.
Owner:BEIJING JUSHUHE TECH CO LTD

Maintenance-free dual push rod drive for heliostat

The application discloses a kind of maintenance-free heliostat double push rod driving devices, including support seat, stand, first push rod module and second push rod module;Support seat is set in the top of stand, and is rotationally connected with stand;First push rod module is rotationally connected with support seat, and is connected with the heliostat module on support seat, for driving heliostat module rotation;Second push rod module is fixedly set on support seat, for driving support seat rotation when heliostat module rotates to preset position, so that the mirror surface of heliostat module is downward.The pitch angle of the heliostat module in the maintenance-free heliostat double push rod driving device of the application is between 0° and 180°, so that the mirror surface can be downward in non-working state, to avoid the deposition of dust, sand and the like, to ensure the mirror surface reflection efficiency, while reducing the cleaning frequency and cleaning difficulty, and the structure is simple, easy to mass production.
Owner:GANSU CHINA POWER CONSTRUCTION PORT SHIP ENGINEERING CO LTD

Heliostat night posture regulation and control system and method for inhibiting frosting

The invention relates to the technical field of solar photo-thermal power generation, in particular to a frosting-inhibiting heliostat night posture regulation and control system and method. The system comprises a power station meteorological station group used for collecting temperature, humidity, wind speed and wind direction meteorological data used for calculating the frosting amount in real time; the mirror surface parameter collector group is used for collecting temperature and emissivity data of the surface or frost layer of the heliostat in real time; the weather forecast database is used for outputting solar radiation intensity, temperature, wind speed and wind direction data for predicting the defrosting period of the second day; the data processor is used for collecting meteorological data and heliostat surface or frost layer temperature and emissivity data, and carrying out data analysis processing, comparison and discrimination; and the central control system is used for receiving data analysis processing, comparison and discrimination results of the data processor. Through real-time sensing of the multi-source environment parameters and the mirror surface parameters, the system can judge whether the heliostat is frosted or not, the frosting amount and the defrosting time are predicted, and then the night posture of the heliostat is regulated and controlled.
Owner:POWERCHINA RENEWABLE ENERGY CO LTD

Tower type photo-thermal power station heliostat cleaning system

The utility model discloses a tower type photo-thermal power station heliostat cleaning system which comprises a walking track, a walking mechanism and a cleaning mechanism, the walking track is fixedly installed on the ground of a tower type photo-thermal power station through a guide rail support, the walking mechanism is hung on a guide rail of the walking track through walking wheels, and the cleaning mechanism is placed in the walking mechanism. The walking mechanism can walk to the heliostat needing to be cleaned along the walking track, after the heliostat is adjusted to be in a proper state, the cleaning mechanism moves to the heliostat from the walking mechanism, accumulated dust on the heliostat is removed in the modes of air injection, water sprinkling, wiping, scraping and the like, the reflectivity of the heliostat is improved, the photo-thermal conversion efficiency of a condensation system is guaranteed, and the service life of the heliostat is prolonged. The heliostat cleaning system is a key technology for realizing automatic cleaning of the tower type photo-thermal power station.
Owner:QUZHOU UNIV

Temporary supporting device for upright post of heliostat

The utility model belongs to the technical field of solar power generation, and particularly relates to a temporary heliostat stand column supporting device which comprises a fixing piece, a plurality of adjusting supporting legs and a horizontal calibration piece, a fixing channel is arranged in the middle of the fixing piece so as to be arranged on a heliostat stand column in a sleeved mode, and the adjusting supporting legs are rotatably arranged on the periphery of the fixing piece at intervals. An included angle is formed between the axial direction of each adjusting supporting leg and the axial direction of the fixing piece, and the stability of the stand column in the construction process is effectively guaranteed by adopting the adjusting supporting legs to be matched with the fixing piece. The horizontal calibration piece is arranged on the top face of the fixing piece, the supporting leg is adjusted in a telescopic mode in the axial direction to make the supporting leg move in a telescopic mode in the axial direction, the horizontal calibration piece displays levelness and can be matched with the supporting leg to conduct fine adjustment on the stand column, it is ensured that the stand column is within the allowable deviation range, and the perpendicularity and the center position of the stand column meet the requirements in the concrete pouring process; the construction success rate is increased, the construction quality is guaranteed, and concrete pouring work is facilitated.
Owner:NORTHWEST ENGINEERING CORPORATION LIMITED

Heliostat connecting device

The utility model discloses a heliostat connecting device which comprises a mounting frame, a quick connecting mechanism is arranged on the mounting frame, the quick connecting mechanism comprises fixing plates, a supporting frame, a heliostat body, an inserting rod, a fixing sleeve, a clamping groove, a clamping block, a connecting block, a contraction spring, a rotating sleeve, a pressing plate and a quick detaching mechanism, the fixing plates are arranged on the two sides of the mounting frame, and the supporting frame is fixed to the top ends of the fixing plates. The heliostat body is fixed to the supporting frame, the inserting rod is inserted into the fixing plate and the mounting frame, the quick connecting mechanism remarkably improves the mounting efficiency of the heliostat body through an optimized connecting mode, and particularly, the fixing sleeve and the inserting rod are in accurate butt joint through matching of the positioning groove and the positioning strip, so that the heliostat body can be quickly and stably mounted on the mounting frame, and the mounting efficiency of the heliostat body is improved. And through the pulling effect of the contraction spring, the connection firmness is further enhanced through clamping of the clamping block and the clamping groove, and the phenomenon of deviation or infirmness possibly caused by manual operation in a traditional installation mode is avoided.
Owner:YULIN UNIV

A sun-tracking azimuth corner driving device for a tower type solar thermal power station

The application discloses a heliostat azimuth angle driving device for a tower type solar thermal power station and relates to the technical field of solar power generation. The heliostat azimuth angle driving device comprises a base, a supporting column electrically connected to the base, a spray head symmetrically arranged at one end of the base, a first motor arranged on the outer wall of the supporting column, a steering gear rotatably arranged at the top of the supporting column and rotatably connected to the output end of the first motor through a belt, a rotation angle driving structure sleeved on the steering gear and used for driving the rotation angle of the heliostat to track light, a shaft rotatably connected to the end of the rotation angle driving structure, a mirror surface overturning structure arranged on the end surface of the shaft, and a vibration cleaning structure sleeved on the shaft and used for cleaning the mirror surface of the heliostat. A connecting frame is sleeved on the steering gear. Through the application, the common heliostat mirror surface cleaning mode is mostly external spray cleaning. Due to the large workload and high difficulty of mirror surface cleaning, the cost of manual cleaning accounts for more than 30% of the operation and maintenance cost of the power station, which brings a heavy economic burden to the operation of the power station.
Owner:NANJING ZHENGLING AUTOMOTIVE TECH CO LTD

A method for measuring the pointing error of a heliostat using moonlight and a camera

The application belongs to the technical field of heliostat measurement, and particularly relates to a method for measuring pointing error of heliostat by using moonlight and a camera, comprising the following steps: rotating the heliostat, guiding the moonlight reflected by the heliostat to the camera; detecting the actual rotation angle of the heliostat when the center of the reflected light beam is located at the position of the camera; at the same time, calculating the theoretical rotation angle of the heliostat at the position based on the heliostat coordinates, the camera coordinates and the moonlight azimuth vector; the difference between the actual rotation angle and the theoretical rotation angle is the pointing error of the heliostat at the current position. The method has the advantages that the moon azimuth changes naturally with time, theoretically, infinite measurement azimuths can be provided, and an unmanned aerial vehicle or an additional calibration tower is not needed, so that the system cost is significantly reduced.
Owner:SEPCOIII ELECTRIC POWER CONSTR CO LTD

System for exploiting thickened oil through cooperation of solar energy and industrial flue gas and working method of 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.
Owner:NORTHWEST ENGINEERING CORPORATION LIMITED