218 results about "Thermal power station" patented technology

The invention discloses a meta-learning Bayesian optimization prediction method for multi-modal displacement of a tank body of a photo-thermal power station, and the method comprises the steps: collecting the data of displacement, temperature, vibration and the like through a multi-modal sensor, separating a displacement sequence into trend, season and residual components through STL decomposition, and carrying out the fusion with the data of the sensor, thereby constructing a 6-dimensional spatial-temporal characteristic matrix; a two-way LSTM-attention mechanism model is adopted, time sequence dependence is captured in a two-way mode, and key cross-modal features are dynamically weighted. And introducing meta-learning-guided working condition adaptive Bayesian optimization: pre-training a meta-model by using a historical working condition to establish a mapping relationship between working condition characteristics and hyper-parameters, dynamically dividing working conditions by real-time data, then activating a corresponding Gaussian sub-model, initializing a search space through meta-learning prior, and optimizing hyper-parameters in combination with an adaptive acquisition function. The test set evaluates the performance of the model through RMSE and MAPE, and finally three-way displacement real-time prediction and safety early warning are achieved. The prediction precision and the dynamic adaptability of the tank body of the photo-thermal power station under the complex working condition are remarkably improved.

The invention discloses an automatic cleaning system and method for a reflector of a photo-thermal power station. The automatic cleaning system and method are suitable for cleaning tower type photo-thermal electric field heliostats and linear Fresnel photo-thermal reflecting mirror surfaces. According to the scheme, the system is mainly composed of a water (gas) distribution vehicle, a reflective mirror area management point, a mirror surface cleaning module and a control system. The mode of combining the Internet of Things technology and remote control is adopted, work of water supply, air supply (blow-drying of the mirror surface) and facilities of scraping plates and spraying is achieved, and the purpose of cleaning the mirror surface is achieved. Wherein the center of the tower-type photo-thermal heliostat surface is provided with a rotating shaft and a spraying scraper blade; the linear Fresnel photo-thermal reflecting mirror surface is provided with a reciprocating type driving mechanism and additionally provided with a water spraying scraper blade facility. According to the system, cleaning equipment is integrated on the reflective mirror, water (gas) is supplied by the water (gas) supply vehicle, full-automatic and efficient cleaning is achieved, and the cleaning efficiency and quality of the reflective mirror are improved.

The invention discloses a hierarchical large model architecture and adaptive reinforcement learning fused multi-modal industrial operation and maintenance system and method and application, and relates to the technical field of industrial automation and artificial intelligence, the system comprises an expert layer module, a system layer module, a total work layer module, an adaptive reinforcement learning engine and a Bayesian collaborative network, the expert layer module is used for receiving equipment time sequence data and local knowledge manual word vectors and generating a preliminary operation and maintenance decision; the system layer module receives decision output of the at least two expert layer modules and corresponding system-level documents, and executes multi-modal data fusion and conflict resolution; according to the system and the method, the limitation of a single-layer model architecture, the obstacle of multi-modal data fusion and the low-efficiency defect of dynamic resource allocation are broken through, the intelligent level of the system is improved, the industrial operation and maintenance efficiency is optimized, and the system and the method have the advantages that the system and the method are easy to popularize and use. The method can be applied to hydropower stations, thermal power stations and intelligent manufacturing production lines.

The invention relates to the technical field of solar photo-thermal utilization, in particular to a photo-thermal power station fused salt circulation system and a regulation and control method.The system comprises light condensation and heat collection units which are connected in parallel, and a hot fused salt module comprises a hot fused salt main pipe and a hot fused salt tank which are arranged in a low position; the cold molten salt module comprises a high-terrain cold molten salt mother pipe, a low-position cold molten salt tank and a mother pipe communicating pipe for connecting the high-terrain cold molten salt mother pipe and the low-position cold molten salt tank, and the cold molten salt tank, the mother pipe communicating pipe, the hot molten salt mother pipe, the light condensation and heat collection unit and the cold molten salt mother pipe are sequentially communicated and circulate back to the cold molten salt tank to form a salt filling circulation path; the cold molten salt tank, the cold molten salt mother pipe, the light-gathering heat-collecting unit, the hot molten salt mother pipe and the hot molten salt tank are sequentially communicated to form a heat storage path, and the light-gathering heat-collecting unit, the hot molten salt mother pipe, the mother pipe communicating pipe and the cold molten salt tank are sequentially communicated to form a salt dredging path. The scale of hot molten salt pipelines needing expensive stainless steel materials can be reduced, the matched electric heat tracing and heat preservation requirements are synchronously reduced, and the material cost and the construction complexity are remarkably reduced.

The invention relates to the technical field of equipment state monitoring, in particular to a heating station equipment health state monitoring system and method. The method comprises the following steps: acquiring structural data of heating station equipment; carrying out topological structure analysis on the heating station based on the heating station equipment structure data to generate heating station equipment topological data; carrying out virtual simulation modeling on the structural data of the heating station equipment by utilizing the topological data of the heating station equipment to generate a three-dimensional model of the heating station equipment; extracting a heat exchanger area of the three-dimensional model of the heating station equipment, and performing heat exchange pipeline path analysis on the heat exchanger area to generate heat exchange circulation data; and surface acoustic wave sensor data acquisition is carried out based on the heat exchanger area to obtain heat exchange surface wave group speed change data. According to the method, through structural topology modeling, fine heat exchange area monitoring, dynamic damage accumulation analysis and closed-loop operation optimization, the accurate monitoring and risk early warning capability of the health state of the heating station equipment is comprehensively improved.

The invention discloses an electricity-hydrogen coupling system optimization scheduling method considering heat recovery and a photo-thermal power station. The method comprises the following steps: constructing an electricity-heat-hydrogen multi-energy flow collaborative model based on an electricity-hydrogen coupling system; the electric-heat-hydrogen multi-energy flow collaborative model transfers reaction waste heat to the photo-thermal power station through a heat recovery device while realizing conversion from electric energy to hydrogen energy and chemical energy; operation parameters of the heat recovery device are obtained, output of the photo-thermal power station is optimized based on the operation parameters, and an optimized electricity-heat-hydrogen multi-energy-flow collaborative model is obtained; and simulating the power flow distribution of the power distribution network in the optimization model by using a linear power flow model, and constraining and solving the optimization model to obtain an optimal scheduling scheme. The energy utilization efficiency and economical efficiency are improved through heat recovery and dynamic adjustment of the photo-thermal power station, and the system energy utilization rate, economical efficiency and wind and light fluctuation coping capacity are improved.

The invention discloses a prediction method for the anti-condensation heat demand of a fused salt storage tank based on a physical information neural network, and belongs to the technical field of operation management of a fused salt heat storage system of a photo-thermal power station. The method comprises the following steps: constructing a physical information neural network model of a fused salt storage tank system; environment parameters and tank body temperature field parameters of the fused salt storage tank system are collected, model training is carried out, the number of model iterations is set according to the composite loss function, and the dynamic mapping relation between the environment parameters and a tank body temperature field is obtained; on the basis of weather forecast data and the dynamic mapping relation, the temperature change of the fused salt in the storage tank during shutdown is predicted; and a heat loss integral equation is established in combination with freezing point characteristics, and the minimum anti-condensation heat demand during the shutdown period is calculated. According to the method, the problem of prediction misalignment of a traditional empirical model and a pure data driving method under complex meteorological conditions is effectively solved, and accurate calculation of the minimum anti-condensation energy is realized.

The invention relates to a molten salt groove type heat collecting device, an operation method of the molten salt groove type heat collecting device and a molten salt groove type photo-thermal power station, and belongs to the field of molten salt groove type photo-thermal power stations. The heat collection mechanism comprises a plurality of heat collectors which are connected in series through pipelines to form a heat collector group, and the two ends of the heat collector group are communicated to the molten salt tank; the heat collector set is arranged in a U shape, a pipeline at the bottom of the U shape is a middle jumper pipe, and the middle jumper pipe is located at the highest position. And a gas outlet of the gas heating mechanism is communicated with the middle jumper pipe. The two ends of the U-shaped heat collector set are communicated with the fused salt tank, the highest position of the heat collector set is communicated with the gas heating mechanism, heating and salt injection can be conveniently conducted on the heat collectors, the automation degree is high, and convenience and rapidness are achieved.

The application discloses a kind of zero carbon scheduling method of virtual power plant with photothermal power station considering and multi-element resource game, first, according to the different division of resource, the park controlled by the virtual power plant with photothermal power station is divided into park 1, park 2, park 3;Establish the game architecture of virtual power plant with photothermal power station and its internal multi-element resource;Establish the output model of photothermal power station containing organic rankine cycle ORC, heat collection mirror field HF, heat storage tank TES;Establish the output model of combined heat and power unit CHP, combined cooling heating and power unit CCHP, and establish actual carbon emission model based on it;Carbon responsibility on power supply side is apportioned to park 1, park 2 by position fair apportionment rule;Establish carbon capture-electricity to gas coupling model;Establish carbon trading model and green certificate income model after responsibility apportionment;According to photothermal power station output model, carbon capture-electricity to gas coupling model, carbon trading model and green certificate income model after responsibility apportionment, construct the master-slave game model of one master and multiple slaves with power balance as constraint condition, leader with realizing zero carbon operation and total income maximum as target, follower with income maximum as target;And solve the maximum income of leader and follower in master-slave game, obtain scheduling scheme.

The invention provides a thermal power station draught fan fault diagnosis method and system and a storage medium. The method comprises the steps that vibration, sound, temperature and pressure data of draught fans are collected and subjected to time-space alignment; constructing a three-dimensional physical model of the fan; carrying out sparse representation on the vibration and sound signals by adopting an improved K-SVD (K-Singular Value Decomposition) algorithm to generate codes for representing bearing fatigue and blade cracks; analyzing temperature and pressure data through heat conduction and CFD flow field simulation, and identifying an overheating area and a pressure abnormal path; establishing a multi-physical field coupling relationship through a tensor fusion algorithm, and constructing a deep belief network diagnosis model; and outputting a fault type and a three-dimensional space positioning result by using the diagnosis model. Through the steps of multi-physics field data acquisition, three-dimensional model construction, improved algorithm sparse representation, heat conduction and flow field simulation analysis, deep belief network model construction, real-time diagnosis and the like, the accuracy and efficiency of fault diagnosis are remarkably improved.

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.

The invention provides a one-key start and stop control method and system for a tower type photo-thermal power station, and belongs to the technical field of tower type photo-thermal power stations. Molten salt pipeline electric heat tracing preheating sequence control, steam generator water feeding temperature control sequence control, mirror field starting sequence control, cold salt pump starting sequence control, heat absorption tower molten salt bypass salt filling sequence control, heat absorber main path salt filling sequence control, vacuum system sequence control, steam generator cold salt filling sequence control, steam generator hot salt feeding sequence control and shaft seal system input sequence control are started in sequence. A steam bypass system is put into sequence control, and a turbine starts sequence control; and during stopping, sequentially starting steam turbine stop sequence control, mirror field stop sequence control, heat absorber salt dredging sequence control, cold salt pump stop sequence control, vacuum system stop sequence control, steam generator salt dredging sequence control, shaft seal system stop sequence control and auxiliary machine system stop sequence control. The operation process of the power station is simplified, the possibility of manual operation errors is reduced, and the operation accuracy is improved.

The utility model discloses a cooling water waste heat recovery system for cultivation, and relates to the technical field of cooling water waste heat recovery, the cooling water waste heat recovery system for cultivation comprises a temperature adjusting device and a first pipeline, the temperature adjusting device is provided with a first water flow channel, an outlet of the first water flow channel is used for being communicated with a cultivation pool, and the first pipeline is provided with a second water flow channel. The temperature adjusting device is used for heating water flowing into the first water flow channel, an inlet of the first pipeline is used for being communicated with a circulating cooling water outlet of a thermal power plant, and an outlet of the first pipeline is selectively communicated with the inlet of the first water flow channel and one of the breeding ponds. According to the cooling water waste heat recovery system for breeding, the waste heat of the circulating cooling water is used for fishery breeding, recycling of the waste heat of the circulating cooling water can be achieved, energy is saved, huge economic benefits can be generated, meanwhile, a natural water area can be prevented from being affected by heat pollution, and the environment is protected.

The invention relates to the field of weather forecast, and discloses a DNI prediction method based on all-sky imaging and clear sky DNI fitting, which comprises the following steps: screening clear sky DNI data from DNI historical data, fitting a clear sky DNI model, and then carrying out clear sky DNI calculation by using the clear sky DNI model obtained by fitting to obtain clear sky DNI at each time point; inputting an all-sky image obtained in real time and an all-sky image obtained in the previous one minute into the trained double-picture convolutional neural network model, and predicting to obtain a clear sky index after # imgabs0 # minute; and multiplying the predicted clear sky index of the # imgabs 1 # after the minute by the corresponding clear sky DNI to obtain a predicted DNI value of the # imgabs 2 # after the minute. The method disclosed by the invention can reflect the change of actual DNI more accurately, has better prediction accuracy and strong adaptability, can be used for tower type solar thermal power generation systems in different regions, and is beneficial to reducing the operation cost of a photo-thermal power station.

The invention relates to the technical field of tower-type photo-thermal power generation, and discloses a tower-type photo-thermal power station heat collection system salt feeding method, which comprises the following steps: pumping out from a low-temperature fused salt storage tank, entering an inlet buffer tank through a first pipeline, simultaneously pumping out from the low-temperature fused salt storage tank, flowing to a liquid level display through the first pipeline and a seventh pipeline, and then feeding the liquid level display into a tower-type photo-thermal power station heat collection system; fused salt in the inlet buffer tank flows into the salt dredging mother pipe through the first salt dredging pipe and the second salt dredging pipe and is fed into the outlet buffer tank, then the first salt dredging pipe and the second salt dredging pipe apply salt to the pipe panels, and then the fused salt in the inlet buffer tank applies salt to the multiple pipe panels through the first salt supply pipe and the second salt supply pipe. Through five-step salting and step-by-step salting, impact on a tube panel, a valve and a pipeline is avoided, the technical problem that in the prior art, a heat absorber tube panel, a valve and a downcomer are damaged is solved, and the technical effects that salting is gentle, and the heat absorber tube panel, the valve and the downcomer are safer are achieved.

The invention discloses a system and a method for testing preheating performance of a fused salt heat absorber of a photo-thermal power station after freezing. The testing system comprises a support frame, a fused salt heat absorber tube panel simulator, a thermocouple wire group, a data acquisition instrument, a simulation photo-thermal source, a water storage tank and a heat flow measuring device. According to the invention, the preheating performance of the fused salt heat absorber under different icing conditions can be measured, and data support and guidance can be provided for solving the preheating problem of the on-site fused salt heat absorber under the icing state.

The application discloses a 625 alloy pipe for a heat absorber of a tower type photo-thermal power station, which contains the following elements in percentage by mass: Cr=21.0-23.0%, Mo=8.5-10.0%, Nb+Ta=3.50-4.15%, Fe=1-5%, C=0.01-0.03%, N<=0.015%, P<=0.01%, H<=0.008%, O<=0.003%, S<=0.003%, and the rest is Ni and inevitable impurity elements. The 625 alloy seamless precision welded pipe prepared by the application has a single austenite structure, no continuous or semi-continuous net-shaped carbide is precipitated on the grain boundary, no strip-shaped structure appears in the grain, and fine dispersed carbide and gamma prime phase are precipitated in the grain. The structure state has stability at a working condition of 565-650 DEG C, and can ensure excellent comprehensive mechanical properties.

The application provides a heat absorption tower structure system of a tower type photo-thermal power station, which comprises a heat absorber, a concrete cylinder, a vertical cylinder, a steel frame, a reinforcing mechanism, a first connecting mechanism and a second connecting mechanism. The vertical cylinder is arranged in the cavity of the concrete cylinder and partially extends out of the concrete cylinder, the steel frame is arranged above the concrete cylinder and surrounds the outside of the vertical cylinder, and the heat absorber is arranged on the steel frame. The reinforcing mechanism is connected between the concrete cylinder and the steel frame to limit the movement of the steel frame relative to the concrete cylinder, thereby realizing the vertical conversion of the steel-concrete structure. The first connecting mechanism fixedly connects the concrete cylinder and the vertical cylinder to form a rigid horizontal connection of the lower tower body. The second connecting mechanism connects the steel frame and the vertical cylinder and allows the relative horizontal displacement of the two within a preset range. The heat absorption tower structure system has high stress synergy and deformation coordination capability, can reduce the construction cost, and meets the requirements of high reliability, light weight and stable support of the heat absorption tower of the tower type photo-thermal power station.

The utility model provides a flexible semitransparent infrared light reflecting photovoltaic cell and a photo-thermal power station provided with the same. The flexible semitransparent infrared light reflecting photovoltaic cell is provided with a curved reflector, a substrate layer, a first transparent electrode and / or a first transmission layer, a light absorption layer, a second transmission layer and / or a second transparent electrode and a packaging layer from bottom to top in sequence. Wherein the first transmission layer is one of a hole transmission layer and an electron transmission layer, the second transmission layer is the other one of the hole transmission layer and the electron transmission layer, and the substrate layer is a flexible high-transmittance substrate or a flexible spectrum selective transflective layer. The flexible semitransparent infrared light reflecting photovoltaic cell can be applied to groove type and disc type photo-thermal power stations, the utilization rate of solar spectrum is improved, the cooperative utilization efficiency of photovoltaic power generation and photo-thermal utilization is remarkably improved, and the flexible semitransparent infrared light reflecting photovoltaic cell has wide application prospects.

The application discloses a wind-solar-thermal-storage automatic power generation control method based on closed-loop rolling optimization and belongs to the technical field of new energy grid connection and automatic power generation control. The method collects system frequency deviation, tie-line exchange power deviation and wind power, photovoltaic and thermal power station operation states in real time, establishes a wind-solar-thermal-storage coupling state space prediction model, takes the system frequency deviation and power increment of each power generation unit as a prediction output, takes a control increment as a decision variable, constructs a model prediction control objective function, and solves the control sequence under the constraints of active power balance, output boundary and thermal power unit climbing to realize closed-loop AGC control, improve the collaborative frequency modulation capability and operation stability of the multi-energy complementary system.

The invention provides a capacity parameter configuration method and device of a photo-thermal power station and electronic equipment, and relates to the technical field of energy, the method comprises the following steps: S1, under various weather conditions, performing simulation calculation to obtain a first heat storage fused salt flow flowing into a heat collector from a cold tank in the photo-thermal power station at each collection moment within a preset time period; s2, constructing constraint conditions based on the first heat storage molten salt flows corresponding to all collection moments, solving a capacity configuration optimization objective function, and obtaining simulation operation parameters and design parameters of a current iteration round; and S2, determining the simulation operation parameters and the design parameters of the current iteration round as new simulation operation parameters and design parameters in the next iteration round, repeatedly executing the steps S1 to S2 until a preset iteration termination condition is met, and carrying out capacity parameter configuration on the photo-thermal power station based on the design parameters of the last iteration round. The optimal configuration of the design parameters of the photo-thermal power station can be realized, so that the actual operation effect of the photo-thermal power station is improved.

The application provides a thermal power station circulating cooling water waste heat recycling system and a working method thereof. The system uses waste heat generated by cooling of thermal power station equipment to heat raw water or desalted water, improves water production capacity of the desalted water, and reduces circulating water pollution. A coagulation sedimentation tank, a filter tank and a water storage tank are connected in sequence. A temperature detector is installed on an inlet pipe of the filter tank. The water storage tank is connected with a production water supply system, a desalted water production system and a desalted circulating water supply pipe. An outlet bypass pipe is connected with the coagulation sedimentation tank and a cooling tower. A backwater bypass pipe is connected with the coagulation sedimentation tank and a circulating water backwater main pipe. Temperature detectors and regulating valves are installed on the outlet bypass pipe and the backwater bypass pipe. A desalted circulating backwater pipe is connected with the desalted water production system and the circulating water backwater main pipe. A desalted circulating water supply pipe is connected with a circulating water supply main pipe. Isolation valves are installed on the desalted circulating water supply pipe, the desalted circulating backwater pipe, the circulating water supply main pipe and the circulating water backwater main pipe.

The application discloses a kind of power generation systems based on friction nanogenerator, including photo-thermal power generation system, heat storage system and friction nanogenerator component.This system is a kind of comprehensive power generation system that TENG wind power generation system is combined with photo-thermal power generation system, the application will large-area TENG power generation system be arranged in solar photo-thermal power station reflector back with array distribution, saves the support part investment of TENG power generation system.Meanwhile, the electric energy of TENG power generation is directly converted into heat energy storage and is stored in the molten salt energy storage system matched with photo-thermal, realizes the energy storage function of wind power generation, and does not need to increase energy storage investment, saves the investment of downstream power transmission and transformation equipment, inverter and other equipment equipped with TENG power generation system, finally, due to the energy storage of TENG power generation system contribution, mirror field area of photo-thermal power generation system can be reduced, and the investment of photo-thermal power station itself will be reduced.

The present invention discloses a high-low temperature dual-fluid solar receiver for a tower-type solar thermal power station and its design method. First, based on the magnitude of the heat flux density, a truncation criterion is used to classify the non-uniformly focused solar heat flux, and then combined with the truncated energy, a heat-absorbing tube row module for the high-heat flux region and a heat-absorbing tube row module for the low-heat flux region are designed to match. The fixed positions, truncated energy, working fluid flow rate, and operating conditions of the two modules are comprehensively matched and designed to obtain a high-low temperature dual-fluid solar receiver. Through iterative design, multiple groups of solar receivers that meet the set conditions are obtained, and the best design results are screened and output from them. The high-low temperature dual-fluid solar receiver includes a heat-absorbing tube row module for the high-heat flux region and a heat-absorbing tube row module for the low-heat flux region, which can respectively heat two heat transfer working fluids to achieve diversified and flexible utilization and reduce material costs, reduce radiative heat loss and improve energy utilization rate on the basis of two-stage energy utilization. The present invention can promote the efficient and low-cost comprehensive utilization of tower-type concentrating solar thermal power generation technology.

The application discloses a high-pressure gas and particle contact type heat exchange device and a solar light and heat power station, wherein the heat exchange device comprises a high-temperature particle storage tank, a low-temperature particle storage tank, a heat exchanger and a plurality of high-temperature particle flow channels and a plurality of low-temperature particle flow channels; the high-temperature particle storage tank is communicated with a particle inlet of the heat exchanger through the high-temperature particle flow channels; the low-temperature particle storage tank is communicated with a particle outlet of the heat exchanger through the low-temperature particle flow channels; a plurality of first gas flow resistance members are arranged on the high-temperature particle flow channels; a plurality of second gas flow resistance members are arranged on the low-temperature particle flow channels; the gas flow resistance members change the gas flow direction and make the high-pressure gas be restrained in the particle flow channels. The particles and the high-pressure gas are directly exchanged in the heat exchanger, the high-pressure gas can be restrained in the particle flow channels, the high-pressure gas cannot enter the high-temperature and low-temperature particle storage tanks, the particle storage tanks are always operated under normal pressure, and the cost of the particle storage tanks and the heat exchanger is reduced.

The invention relates to the technical field of heat energy storage, in particular to a low-liquid-level fused salt storage tank for a photo-thermal power station. A low-liquid-level device is arranged at the position, corresponding to the molten salt pump, of a bottom plate of the tank body, and the low-liquid-level device comprises an annular-groove-shaped connecting pipe assembly and an annular-groove-shaped sleeve. A main body of the connecting pipe assembly is embedded in the foundation, the end, provided with an opening, of the connecting pipe assembly is fixedly connected to the peripheral wall, provided with the through hole, of the bottom plate, so that a low-liquid-level area communicated with the interior of the tank body is formed in the groove of the connecting pipe assembly, and a suction pump shaft of the molten salt pump extends into the low-liquid-level area. The sleeve is arranged outside the pipe connecting assembly in a sleeving mode and fixed into the foundation in an embedded mode so that a space for the pipe connecting assembly to move can be formed between the sleeve and the pipe connecting assembly. According to the low-liquid-level fused salt storage tank, the technical problem of dead salt in a low-liquid-level area is solved on the premise that relative movement between the bottom of the storage tank and a foundation is not affected.

The invention discloses an efficient light condensation and heat dissipation synergistic photo-thermal power station heat collection device, and belongs to the field of heat collection, the efficient light condensation and heat dissipation synergistic photo-thermal power station heat collection device comprises a heat collection frame, the heat collection frame is fixedly installed at the top of an external heat collection tower, and a circle of annular light-transmitting glass is fixedly connected to the exterior of the heat collection frame; a deformation plate is used as a thermosensitive driving element. When the internal temperature of the heat collection device rises, the deformation plate is heated to bend and deform, the transmission system is pushed through the lifting ring, the connecting plate and the helical tooth plate, the sealing plate is finally driven to be opened, light-gathering arc-shaped glass on the inner surface of the sealing plate and heat dissipation arc-shaped fin plates on the back face of the sealing plate correspond to two modes correspondingly, and when the temperature is too high, the opened sealing plate enables heat dissipation fins to be exposed; air convection heat dissipation is enhanced, and overtemperature of the heat collecting pipe is prevented; and when the temperature is reduced, the deformation plate recovers, the sealing plate is closed, the heat preservation cavity is formed, and the condensation mode is switched, the process is completely and passively carried out, external energy and control are not needed, and intrinsic intelligentization and energy conservation are achieved.

The invention relates to the technical field of power stations, in particular to a gravity buoyancy power station which comprises a plurality of air pressure assemblies, an auxiliary source force well, a power generator, an output air storage tank and a back supplement air storage tank, and the air pressure assemblies and the auxiliary source force well are used for generating compressed airflow. According to the power station, natural force of gravity and buoyancy is utilized, a large amount of fuel does not need to be consumed, the power generation cost is reduced, the efficiency of the system is improved, and the energy loss is reduced; intermittent power generation of the auxiliary generator is used for equipment power supply back compensation and power supply to the battery pack, dependence of external power is reduced, the cost is further reduced, pollutants are not generated in the operation process, and pollution to the environment is avoided. Compared with a traditional thermal power station, the system has the obvious environment-friendly advantage. The operation noise of the power station is relatively low, and no interference is caused to the surrounding environment and the life of residents.

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.

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.