47 results about "Heating season" patented technology

This invention discloses a PVT (Polyvoltine Transformer) soil source heat pump centralized heating system, relating to the field of integrated utilization of solar photovoltaic and solar thermal energy. It includes PVT modules and a photovoltaic inverter for converting the direct current (DC) generated by the PVT modules into alternating current (AC) for use by electrical equipment within the system or for grid connection. In this PVT soil source heat pump centralized heating system, the temperature of the solar panels in the PVT modules decreases during operation, improving their power generation efficiency. During the winter heating season, the soil source water temperature can be increased during certain periods, reducing the operating costs of the soil source heat pump unit. In the non-heating season, supplemental heating is provided to the soil side to achieve a thermal balance, thereby enabling the soil source heat pump unit to maintain high-efficiency operation during the heating season. This solves the problems existing in traditional soil source heat pump centralized heating systems and has advantages such as high efficiency, energy saving, and sustainability.

The invention discloses a solar light-heat / cold conversion and cross-season energy storage system suitable for abandoned mine transformation. The system comprises a water supply module, an energy supply module, an energy conversion module, a quality inspection and strengthening module, an energy storage module and a control module. The water supply module provides initial and supplementary water; the energy supply module collects energy for conversion and supplies energy to each module; the transduction module utilizes the energy processing multi-module to convey water and sends outlet temperature data to the control module. The quality inspection and enhancement module sends water temperature data and receives an instruction to execute operation; the energy storage module is used for storing water, collecting water temperature data at regular time and receiving post-processing instruction operation; the control module analyzes the temperature data of the transduction module and sends an instruction to the control system. The system solves the problems of mine treatment and facility idling in non-heating seasons, has cross-seasonal heat and cold storage capacity, realizes seasonal-scale energy supply and demand mismatch adjustment, energy space-time translation and all-season efficient utilization, and improves the system utilization rate and the rate of return on investment.

The present application relates to a kind of bypass adaptive configuration carbon dioxide heat pump heating system and control method, wherein the bypass adaptive configuration carbon dioxide heat pump heating system of multiple includes carbon dioxide sub-cycle, refrigerant sub-cycle and water supply flow path connected with each other heat exchange;Carbon dioxide sub-cycle includes main carbon dioxide loop and regenerator bypass;Main carbon dioxide loop includes sequentially connected carbon dioxide compressor, carbon dioxide-water heat exchanger I, carbon dioxide-water heat exchanger II, carbon dioxide-refrigerant heat exchanger, carbon dioxide throttling valve I, carbon dioxide evaporator;Water supply flow path is connected with the main carbon dioxide loop by carbon dioxide-water heat exchanger I and carbon dioxide-water heat exchanger II heat exchange connection.Compared with prior art, while realizing the efficient operation of system full heating season, the present application can adaptively match different end conditions, while having more efficient and stable defrosting effect and more reliable compressor safety guarantee.

A solar energy auxiliary combined heat and power system and operation method, the system comprises a boiler, a high, medium and low pressure cylinder of a steam turbine, a condenser, a heat recovery system connected in sequence; further comprising a trough type solar heat collection system, a high and low temperature heat storage tank, an oil-water heat exchanger, a peak heater, a waste heat heater, an auxiliary heater, an absorption heat pump and various valves. During the daytime power peak and heat valley period, the solar energy drives the absorption heat pump and the peak heater, recovers the steam turbine exhaust and the waste heat of the heat network return water, under the premise of meeting the heat supply load, auxiliary improves the steam turbine power output; the excess solar heat is stored through the high temperature tank. During the night power valley and heat peak period, the high temperature tank releases heat to drive the absorption heat pump and the peak heater to recover the steam turbine exhaust and the waste heat of the heat network return water, which is used for heat supply of the heat network. The present application realizes the pure condensing condition operation of the combined heat and power unit in the heating season, and greatly improves the power output of the unit in the power peak period, and the peak regulation capacity is obviously improved.

The invention provides a sustainable heat supply and defrosting method and system for coupling a PV / T heat pump with an air source heat pump, belongs to the technical field of heat supply systems, and can solve the problems that an existing air source heat pump is unavoidable in frosting, and the air source heat pump needs to stop indoor heat supply and even absorb part of indoor heat to reduce the indoor heat supply temperature under the defrosting working condition. The method comprises the steps that an illumination condition and an environment temperature condition are judged, a corresponding heating and defrosting mode is selected based on the illumination condition and the environment temperature condition, and the heating and defrosting mode comprises an air source compensation type PV / T heat pump synchronous heating and defrosting mode and a PV / T compensation type air source heat pump synchronous heating and defrosting mode. According to the sustainable heat supply and defrosting method coupled with the PV / T heat pump and the air source heat pump, sustainable heat supply in the defrosting process of the air source heat pump is achieved, the wide-temperature-zone operation range of the air source heat pump and the PV / T heat pump is widened, a heat pump unit can operate efficiently, and the heating season energy efficiency coefficient of the unit is increased.

The invention relates to the technical field of heat supply systems, and provides a centralized heat supply system and a control method thereof.The centralized heat supply system comprises a centralized heat supply module and an energy module, and the energy module comprises an air heat exchange unit, a heat storage unit, a heat pump unit, a water dividing and collecting unit, a control valve set, a green power unit and a power distribution unit; the water dividing and collecting unit is connected with the air heat exchange unit, the heat storage unit and the heat pump unit and controls connection and disconnection between any two of the air heat exchange unit, the heat storage unit and the heat pump unit, the control valve set is connected with the heat pump unit, the heat storage unit and a primary network of the centralized heating module and controls connection and disconnection between any two of the heat pump unit, the heat storage unit and the centralized heating module, and a wire of the power distribution unit is connected with the green power unit and a municipal power grid. The power distribution unit supplies power to electric components of the energy module. Therefore, the central heating system can operate in the heating mode to supplement heat to the primary network and meet the heat utilization requirement of the secondary network, and can operate the heat storage mode by using the electric power generated by the green power unit in the non-heating season to realize cross-season heat storage so as to efficiently absorb renewable electric power.

The utility model relates to a solar heat storage coupling split heat pipe and a mine air inlet heating system, and belongs to the technical field of solar heat storage mine heat supply. The solar heat storage coupling split heat pipe is a heat storage type heat exchanger, can be buried in soil, is used in cooperation with a solar heat collector, and stores absorbed solar radiation energy in surrounding soil in a dividing wall heat exchange mode under the working condition of a non-heating season, so that a heat source guarantee is provided for subsequent heat supply. The mine air inlet heating system can be matched with the solar heat storage coupling split heat pipe, energy waste caused by high-temperature air supply is greatly reduced while reasonable allocation of heat energy is achieved, and the overall heat efficiency of the system is remarkably improved; the problems that according to an existing mine heat supply system, it is difficult to meet the mine air inlet heat supply working conditions that the distance between an air inlet shaft and an industrial square is long, a mine area lacks recyclable heat energy as a heat source support, the power distribution capacity is insufficient, and a coal heat supply mode is not suitable are solved.

The application provides a heat pump air conditioning system and a defrosting control method thereof. The heat pump air conditioning system comprises a compressor assembly, a first heat exchanger, a second heat exchanger, a pump component, an indoor unit, a heat storage water tank and a branch pipeline. A throttling pipeline is connected between the first heat exchanger and a first medium channel. The heat storage water tank is arranged at a pipeline evaporation section of the throttling pipeline and located at an upstream side of a throttling component. The first medium channel is respectively connected with a first medium inlet pipe and a first medium outlet pipe at two ends. An upstream end of the throttling pipeline is connected with a downstream end of the first medium outlet pipe, and a downstream end of the throttling pipeline is connected with the first heat exchanger. The branch pipeline is respectively connected with the upstream end of the throttling pipeline and the first medium inlet pipe at two ends. In a heating mode, the branch pipeline is cut off, and the first medium inlet pipe and the first medium outlet pipe are both conducted. In a defrosting mode, the branch pipeline is conducted, and the first medium inlet pipe and the first medium outlet pipe are both cut off. The air conditioning system solves the problem of large indoor temperature fluctuation during defrosting in the heating season.

The application discloses a kind of table area electric heating load identification method and system, belong to power grid data analysis and intelligent identification technical field.The method includes: obtaining the historical load of to-be-identified table area, time and multi-dimensional time series data such as meteorology by data acquisition module;Utilize a deep learning model comprising time series feature extraction module and key feature weighting module to process data to generate preliminary classification results;Based on the business rules of the growth of heating season electricity consumption and the stability of non-heating season electricity consumption, the historical load is compared and verified across years;The preliminary classification result of model is combined with the verification result of rule, and whether table area is electric heating load is comprehensively judged.This application combines the pattern recognition ability of deep learning with the deterministic logic of business rules, realizes the high-precision, high-robustness automatic identification of electric heating load, and provides an effective technical means for power grid intelligent management.

The invention provides a heat supply period extraction condensing unit high back pressure optimization control system and method, and the system comprises an agent modeling implementation module which is used for building a multi-agent model of a boiler, a steam turbine, a condenser and a heat supply network, achieves the real-time data exchange through a dynamic coupling interface, and is used for carrying out the real-time data exchange through a partitioning strong coupling method, the inter-field flux transfer accuracy is ensured; the three-stage closed-loop parameter calibration module is used for establishing a complete parameter calibration assembly line; the physical information deep learning module is used for combining a neural differential equation with physical constraints to determine a mechanism enhanced model; the third-level toughness control module is used for performing safety protection control according to the working state of the extraction condensing unit; and the full-link intelligent collaborative optimization module is used for extracting multi-source data related to the condensing unit and performing collaborative control on each module of the condensing unit. At least five innovative modules can be systematically integrated, so that intelligent optimization control of the back pressure of the extraction condensing unit is realized.

The invention relates to an intelligent decomposition and optimization method for an annual power generation plan of a power plant, belongs to the technical field of power plan scheduling, and solves the problems of low granularity and low evaluation dimension of an existing power plan scheduling model. The method comprises the following steps: dividing a target year into a plurality of basic optimization time periods based on the operation mode difference between a heat supply season and a non-heat supply season; taking the minimum annual total gas consumption predicted by the generalized additive model as an optimization target, and coupling a smooth penalty term to construct a basic optimization target function; generating a feasible operation interval of each basic optimization period; generating a plurality of feasible initial solutions in the feasible operation interval, performing iterative solution on each feasible initial solution by adopting a constraint optimization algorithm to obtain an optimal solution, and selecting a solution with the lowest basic optimization objective function value from all the optimal solutions as a final optimal solution; integer correction is carried out on the power generation amount and the heat supply amount in the final optimal solution, and a prediction interval of the gas consumption amount is generated based on the corrected power generation amount and heat supply amount.

The invention relates to the technical field of building energy optimization control, in particular to a perception type CNN-LSTM hybrid prediction control method and system based on Bayesian optimization, and the method comprises the steps: building an ASHP-PCM coupling system high-fidelity simulation model based on TRNSYS; preprocessing to obtain a standardized input sequence; a CNN-LSTM hybrid prediction model is constructed; the hyper-parameters are optimized in a self-adaptive mode through Bayesian optimization; introducing an electricity price weighted loss function training model; and formulating an ASHP-PCM system optimization control strategy of valley electricity heat storage and peak electricity heat release by combining a heat load prediction value output by the model with time-of-use electricity price. According to the method, Bayesian optimization and electricity price weighting CNN-LSTM are taken as the core, ASHP-PCM system characteristics are accurately captured, energy consumption of the coupled heating system in the heating season is effectively reduced, peak load shifting is achieved, prediction precision and economical efficiency are improved, and remarkable benefits are achieved.

The application discloses a power grid-thermal power plant-heat network collaborative scheduling method and system for power supply guarantee demand, first carries out day-ahead load prediction, and statistics power station power prediction situation and available capacity and time length of various types of regulation power generation resources and energy storage resources in the region belonging to the power grid, determines the top peak time period and required top peak capacity of the next day, in the intra-day stage, according to whether the current power grid needs the top peak requirement, carries out the regulation and control of the running generator unit, standby unit, pumped storage unit and new energy storage, combines the collaborative heat network emergency top peak mechanism, until the top peak requirement is reached. The application solves the problem of difficulty in power supply guarantee caused by the decline of the peak capacity of a large number of thermal power plants in the heating season due to the bearing of people's livelihood heating, and has significant social and economic benefits.

The invention discloses a source-load-storage coupled deep geothermal long-time energy storage system and a control method, and belongs to the technical field of geothermal energy storage, the system is composed of a deep heat storage unit, a combined heat and power generation unit, a heat supply plate exchanger, a heat storage plate exchanger, a power grid, a heat supply network and a valve group, and flexible linkage of all the units is achieved through the valve group. According to the control method, on the basis of the source load storage dynamic coordination and ground and underground coupling principle, the real-time electric heating load of the building serves as the requirement standard, a variable-working-condition operation strategy is formulated in the heating season and the non-heating season, and alternate operation of heat storage in the daytime and heat removal at night in the heating season is achieved; and in the non-heating season, the combined heat and power generation unit is controlled to perform pure condensation power generation and deep heat storage closed well operation. The system energy storage efficiency can be improved, the thermal plume diffusion and thermal breakthrough risks are reduced, meanwhile, the system operation cost is reduced, and the initial payback period is shortened.

The application discloses an electric heating user identification and heating electricity consumption feature analysis method and device. The electric heating user identification and heating electricity consumption feature analysis method comprises the following steps: acquiring user electricity consumption history data in a region to be identified; dividing the user electricity consumption history data in the region to be identified into historical user detailed electricity consumption data and historical regional overall electricity consumption data; acquiring overall electricity consumption and air temperature change relationship information during a heating season, the number of electric heating users and the proportion of the electric heating users in overall users, and the average use rate of electric heating in the region to be identified according to the historical user detailed electricity consumption data and the historical regional overall electricity consumption data. Through the method, the overall electricity consumption and air temperature change relationship information during the heating season, the number of electric heating users and the proportion of the electric heating users in overall users, and the average use rate of electric heating in the region to be identified can be identified, and the information can be displayed on an interface, so that the electricity consumption features of the electric heating users can be intuitively understood.

The invention relates to the technical field of radiators, in particular to a copper-aluminum composite radiator with double-spiral water channel diversion, which comprises a bottom plate and a plurality of aluminum radiating ring sleeves arranged at the top end of the bottom plate, a supporting plate is mounted on one side of the top end of the bottom plate, two fans are embedded in the wall of the supporting plate, and a limiting vertical plate is mounted on the other side of the top end of the bottom plate. The upper end and the lower end of one edge aluminum heat dissipation ring sleeve are fixedly connected with limiting plates, the limiting plates are slidably clamped to the side wall of the aluminum heat dissipation ring sleeve on the edge of the other end, through holes are formed in the middles of the limiting plates in a penetrating mode, the attaching faces of the multiple aluminum heat dissipation ring sleeves are fixedly connected with sealing gaskets, and limiting grooves are formed in the inner ends of the plate walls of the limiting vertical plates. According to the heat dissipation device, flexible unfolding and combined storage of the aluminum heat dissipation ring sleeve are achieved, space occupation can be reduced in the non-heating season, dust accumulation is prevented, and the problems that dust accumulation is prone to occurring and the space is occupied when a traditional heat dissipation device is not used are solved.

The application discloses a coaxial casing type water body heat storage system and method based on a shaft of a closed mine, and the shaft of the closed mine is sealed by a sealing section, a coaxial casing with a deep inner part and a shallow outer part is arranged at the center of a top sealing well lid, a cement ring is formed between an outer pipe and a shaft wall annulus, and a casing hanger is used to share the weight of the casing, a one-way valve and a perforated screen pipe are arranged at a specific depth of the inner pipe, and a bidirectional heat storage adaptive assembly is formed. The method uses natural rebounding underground water as a medium, switches a high-temperature heat source storage mode and a low-temperature heat source storage mode according to the relationship between the temperature of the heat source and the original ground temperature at the top surface of the sealing section, in a non-heating season, water is pumped through the outer pipe, heated and then recharged for heat storage, in a heating season, reverse circulation is used for heat release and heating, and the low-temperature mode can also be used to synchronously provide a summer cooling load. The application is adapted to the large-diameter and large-depth characteristics of the shaft, realizes large-scale cross-season heat storage, fully utilizes the remaining resources of the closed mine, reduces the heat storage cost, is adapted to multiple heat sources, relieves the time and space intermittence of renewable energy, and promotes the green and low-carbon transformation of the closed mine.

The application discloses a kind of heating season city gas system load prediction method and system, it is related to gas system load prediction technical field, including the following steps: collection heating season city gas system relevant raw data, wherein raw data includes historical data and real-time data, and the raw data collected is preprocessed, obtain gas load analysis set and gas load analysis demand variable.The application constructs gas load prediction model by comprehensively analyzing gas usage, meteorological data, population statistics data and gas price data, significantly improves the accuracy of gas load prediction, and by analyzing historical extreme weather events, calculating extreme weather influence index, assessing possible risks, then combining gas load assessment index and risk warning coefficient, quantifying risk level, adjusting warning level dynamically according to real-time data, timely taking preventive measures, reducing the influence of extreme weather events on gas supply.

This invention discloses a heating demand load forecasting method based on user habits, belonging to the field of heating load forecasting technology. The method includes collecting multi-source historical heating season data from a target heating area, performing outlier removal, missing value imputation, and time series alignment preprocessing to construct a structured training sample database. Dynamic feature vectors representing the heating response patterns of user groups are extracted and input into a long short-term memory neural network optimized by combining the temporal periodicity and spatial correlation of user heating behavior. The nonlinear mapping relationship between user habitual heating behavior and external meteorological disturbances is explored to construct a heating load forecasting model. Hourly heating demand load forecast sequences are generated by combining future weather forecast data. This method can deeply explore the inherent patterns of user heating behavior, adapt to temporal and spatial correlation characteristics, accurately characterize the complex nonlinear correlations between multiple factors, and output continuous time-series load forecast results.

The invention discloses a heat supply system digital production management platform based on artificial intelligence, and the platform comprises an inspection management module, an overhaul and maintenance management module, and an emergency safety management module which are respectively used for formulating an inspection work order, an overhaul and maintenance work order, and an emergency guide work order; the multi-source work order integrated management module is used for calling a work order identification large model to obtain a work order content identification result after obtaining multi-source work order integrated information, establishing a work order distribution optimization model in combination with a work order portrait, a work order processing personnel portrait and a current personnel state, and obtaining optimal personnel information for executing each work order; the production management mobile equipment is used for personnel to receive and execute various types of distributed work orders and monitor track information and work order processing states of the whole execution process of the various types of work orders; and the production evaluation management module is used for setting comprehensive evaluation multi-type indexes, carrying out comprehensive evaluation on the production management condition in the heating season, analyzing an optimizable mechanism in the work order processing process and formulating a work order processing optimization strategy.

The invention provides a mid-deep layer ground source heat pump cross-seasonal heat storage operation control method and device, and the method comprises the steps: obtaining basic parameters of a coupling heat supply system, and building a digital twinborn model of the coupling heat supply system; the whole life cycle cost minimization serves as an optimization target, and strategy parameters for conducting active heat storage on the underground in the non-heating season are selected as decision variables; under the condition that constraint conditions are met, solving an optimal decision variable combination which minimizes the full life cycle cost; in the non-heating season, according to the optimal annual or monthly heat storage strategy, the electric boiler is started to store heat underground in the off-peak electricity period; in the heating season, the ground source heat pump is preferentially operated to take heat from the underground subjected to heat supplement, the electric boiler serves as an auxiliary heat source, and the heat taking amount in the heating season can be compensated in a complete annual period through cross-season heat storage, so that long-term dynamic balance of underground heat taking and heat supplement is achieved, and the heat utilization rate of the heating season is increased. And the reliability of cross-seasonal heat storage operation control of the middle-deep layer ground source heat pump is improved.

The invention discloses a PV / T and double-source heat pump coupled heat exchange system, and relates to the technical field of complementary coupling of solar energy and air energy. The system comprises a double-source heat pump unit, a solar heat supply unit, a user side heat supply unit and an electric control unit, and can realize cooperative operation of photovoltaic power generation, photo-thermal utilization and heat pump heating and refrigeration. The PV / T heat source and the air heat source can be switched to guarantee heating in winter, refrigeration and domestic hot water supply are taken into consideration in non-heating seasons, meanwhile, the PV / T heat collector is cooled in a targeted mode to improve the photoelectric efficiency, and electric energy generated by the PV / T heat collector is stored, connected to the internet or used by a user. The COP value of the heat pump and the power generation efficiency of the PV / T heat collector can be remarkably improved, and the overall conversion use efficiency of solar energy is improved.

The present application belongs to the technical field of nuclear energy and biomass energy coupling, and provides a double low-pressure cylinder machine side coupled nuclear energy system with negative carbon emission and a control method thereof. The first low-pressure cylinder and the second low-pressure cylinder are connected to a steam main pipe through a first adjusting valve and a second adjusting valve respectively, and a first control valve is arranged between the first low-pressure cylinder and the second low-pressure cylinder on the steam main pipe. The first low-pressure cylinder is connected to a residential heating system through a second control valve. The steam main pipe is connected to a nuclear energy heating reactor through a third control valve. The nuclear energy heating reactor is connected to a reboiler through a fourth control valve. The working states of the first low-pressure cylinder, the second low-pressure cylinder and the nuclear energy heating reactor are controlled through the actions of the valves, and the actions of the valves are controlled according to different working conditions in the heating season and the non-heating season. The problem that the nuclear energy heating reactor is difficult to adapt due to frequent changes in heating load is solved, the overall economy of the system is improved, and the problem that the nuclear reactor needs to be frequently adjusted due to load changes is avoided.

The invention discloses a heat and cold storage system based on a single-tank composite phase change heat and cold storage device, which relates to the technical field of energy utilization and comprises a heating unit, a refrigerating unit, a single-tank composite phase change heat and cold storage device unit, a heat and cold supply unit and a power supply unit. The single-tank device is divided into a heat storage unit (packaging phase change materials) and a cold storage unit (water / ice phase change) through a porous partition plate, and the functions of phase change / water sensible heat storage and ice cold storage are integrated. The power supply unit supplies power through a photovoltaic system and a power supply system and supports operation of the electric heater and the refrigerating and heating all-in-one machine. A composite heat storage mode is adopted in the heating season to meet the heat supply requirement, and ice storage cold supply is adopted in the refrigerating season. The system supports six modes of single / combined heat storage, single / combined heat supply, cold storage and cold supply, and is flexibly operated through valve switching. The energy storage utilization rate is increased, the energy storage capacity and cost of the building are reduced, and the method is suitable for distributed building energy supply.

The utility model relates to the technical field of geothermal heat supplement, disclose a kind of solar energy and self-supporting heat extraction coupling geothermal heat supplement system, comprising: underground heat exchange module, for setting in shallow underground and soil or underground water heat exchange;Through setting underground heat exchange module, in heating period, the case of sufficient sunlight in daytime, utilize shallow geothermal that underground heat exchange module draws, again through and ground source heat pump module, heat is transmitted to user residence and is heated, in non-heating season, without refrigeration and the case of sufficient sunlight in daytime, utilize solar energy photothermal module to absorb heat and re-inject to shallow underground, in the case of no light or cloudy night, through self-supporting heat extraction module, ground source heat pump module is provided with heat, so that ground source heat pump module transmits heat to underground heat exchange module, heat is released to shallow underground by underground heat exchange module, in this way, heat can also be injected to underground when dark, it is convenient to make underground soil restore original temperature, prevent geotemperature imbalance.

This invention relates to a tiered response operation method based on an urban and rural intelligent road infrastructure system. The system mainly includes intelligent snow-melting paving brick units, functional drainage grid modules, ecological green belt units, water storage and purification modules, intelligent control modules, and a dual-heat source heating system. The intelligent control module automatically switches between the following operating modes based on environmental parameters and system status: passive anti-icing mode, water-heat-dominated mode, electric-heat-priority and dual-heat-source synergistic mode, dual-heat-source full-power mode, dryness maintenance mode, and non-heating season energy storage mode. This invention, through a tiered snow-melting strategy of "passive triggering first, active heating guarantee," can automatically match the optimal heating strategy according to snow conditions, maximizing energy savings while ensuring snow-melting effectiveness. The operating energy consumption is reduced by more than 60% compared to traditional continuous heating schemes.

This invention discloses a multi-energy complementary combined cooling and heating system based on solar, nuclear, and energy storage, and its operation method. The system includes a pool-type low-temperature heating reactor, a gas-fired boiler, solar collectors, a hot water storage tank, a cross-seasonal buried pipe thermal storage device, a single-effect absorption chiller / thermal chiller, a solution dehumidifier, and a water-to-water heat exchanger. During the winter heating season, the water supplied by the pool-type low-temperature heating reactor drives the absorption heat pump, which can raise the low-grade heat in the cross-seasonal buried pipe thermal storage device to a medium grade that meets the heating needs of users. This not only realizes the cross-seasonal utilization of solar energy but also significantly improves the system's heating capacity. Furthermore, the hot water storage tank configured on the user side can simultaneously store the heat output from the pool-type low-temperature heating reactor and the heat collected by the solar collectors; it achieves peak shaving for heating and cooling in winter and summer respectively, improving the system's operational flexibility, reducing the system's designed installed capacity, and lowering the initial investment.

The invention belongs to the field of thermal power and solar photovoltaic photo-thermal power generation and heating, discloses a steam turbine coupled PV / T power generation and heating system and a working method thereof, and aims to solve the problems that a part of working media are lost, the generating capacity is reduced and the benefits of a power plant become poor due to the fact that a conventional thermal power plant heats feed water through regenerative steam extraction and can obtain clean electric energy and heat energy through the PV / T technology. However, the heat energy grade is low, and the regional heating requirement cannot be met. Conventional thermal power is organically combined with the PV / T technology, and operation switching of the system in the heating season and the non-heating season is achieved by adjusting the stop valve I, the stop valve II, the stop valve III, the stop valve IV and the stop valve V. The power generation efficiency is improved in the non-heating season, low-temperature hot water at the PV / T outlet is heated to the high temperature in the heating season, regional heating is achieved, meanwhile, PV / T power generation can replace part of station service power, and therefore the station service power consumption rate is reduced, the on-grid electric quantity is increased, and the benefits of a power plant are improved.

The application discloses a PV / T and double-source heat pump coupled heat exchange system, and relates to the technical field of solar energy and air energy complementary coupling. The system comprises a double-source heat pump unit, a solar heat supply unit, a user-side heat supply unit and an electric control unit, and can realize the collaborative operation of photovoltaic power generation, light heat utilization and heat pump heating and refrigeration. The application can switch the PV / T heat source and the air heat source to guarantee heating in winter, and can supply refrigeration and domestic hot water in the non-heating season. Meanwhile, the application can target to reduce the temperature of the PV / T collector to improve the photoelectric efficiency, and can store, transmit or use the electric energy generated by the PV / T collector. The application can significantly improve the COP value of the heat pump and the power generation efficiency of the PV / T collector, and improve the overall conversion and use efficiency of solar energy.

The invention discloses a data center full-year waste heat recovery and clean heating device and an operation method thereof.The data center full-year waste heat recovery and clean heating device comprises a waste heat heating module and an underground energy storage module, the waste heat heating module comprises a solar heat collector, a data machine room, a heat pump unit and the like, and the underground energy storage module is composed of a hot well, a cold well, an underground aquifer and the like; coupling linkage between the modules is achieved through pipelines and valves. In the non-heating season, the waste heat of the data machine room is mainly used, solar energy is used for assistance, and the waste heat is stored in an underground aquifer while free cooling is conducted on the machine room; in the heating season, through three modes of waste heat heating, geothermal heating and waste heat-geothermal combined heating, different temperature requirements are met by adapting to the peak regulation function of a heat pump. The problem of seasonal dislocation of waste heat and heat supply requirements of the data center is solved, cross-seasonal efficient utilization of waste heat is achieved, the energy utilization rate is remarkably increased, the operation cost of PUE and a heating system of the data room is reduced, carbon emission is reduced, and the system is suitable for various waste heat sources, stable in operation and wide in adaptability.