934results about "Geothermal collectors" patented technology

A geothermal system including a heat-driven process system using heat extracted from a magma wellbore for driving a thermal process. The system includes a magma wellbore connected to the heat-driven process system in a closed loop. A heated heat transfer fluid conveys the heat from the magma wellbore to a reactor housing a decomposition reaction. The reactor can be a batch reactor, a continuous reactor, or a through-flow reactor. The heat provides the reaction temperature necessary for driving the decomposition reaction of a polymer to an end product. The heat can be provided directly by the heated heat transfer fluid, by an intermediate heat transfer fluid heated by the heated heat transfer fluid, or by a reaction medium heated by the heated heat transfer fluid.

The invention discloses a multi-branch middle-deep geothermal well efficient heat exchange system which comprises a main well, a plurality of branch wells and heat exchange pipes extending downwards in the main well in the vertical direction. The main well comprises a first well opening section and a second well opening section, the first well opening section extends downwards from the ground in the vertical direction to be communicated with an upper port of the second well opening section, a lower port of the second well opening section extends downwards in the vertical direction to a geothermal water layer, and an upper port of each branch well is communicated with the second well opening section. The lower port of each branch well obliquely and downwards extends to the geothermal water layer in the direction gradually away from the second opening well section; the vertical distances between the upper ports of the multiple branch wells and the ground are different, and a heat conduction metal stranded wire is arranged in each branch well in the extension direction of the branch well. The medium-deep geothermal well is designed to be of a multi-branch directional well structure, the heat conduction metal stranded wires are arranged in the branch wells in the extension directions of the branch wells, and therefore the geothermal energy taking capacity and the heat transfer efficiency of the stratum far away from the medium-deep geothermal well are greatly improved.

A geothermally powered hydrogen production system includes a wellbore that heats a heat transfer fluid, thereby forming heated heat transfer fluid. A heat exchanger heats a feed stream using the heated heat transfer fluid, thereby forming a heated feed stream. An electrolyzer receives the heated feed stream and generates hydrogen from the heated feed stream.

A geothermal system including a heat-driven process system using heat extracted from a magma wellbore for driving a thermal process. The system includes a magma wellbore connected to the heat-driven process system in a closed loop. A heated heat transfer fluid conveys the heat from the magma wellbore to a reactor housing a decomposition reaction. The reactor can be a batch reactor, a continuous reactor, or a through-flow reactor. The heat provides the reaction temperature necessary for driving the decomposition reaction of a polymer to an end product. The heat can be provided directly by the heated heat transfer fluid, by an intermediate heat transfer fluid heated by the heated heat transfer fluid, or by a reaction medium heated by the heated heat transfer fluid.

A geothermal system including a heat-driven process system using heat extracted from a magma wellbore for driving a thermal process. The system includes a magma wellbore connected to the heat-driven process system in a closed loop. A heated heat transfer fluid conveys the heat from the magma wellbore to a reactor housing a decomposition reaction. The reactor can be a batch reactor, a continuous reactor, or a through-flow reactor. The heat provides the reaction temperature necessary for driving the decomposition reaction of a polymer to an end product. The heat can be provided directly by the heated heat transfer fluid, by an intermediate heat transfer fluid heated by the heated heat transfer fluid, or by a reaction medium heated by the heated heat transfer fluid.

A geothermal reactor well system includes a closed-loop well coupled to one or more sources of reactants. The closed-loop well includes a first surface wellbore extending from a terranean surface to a geothermal subterranean zone and a second surface wellbore extending from the surface to the zone. A plurality of connecting wellbores connect the first surface wellbore to the second surface wellbore. At least a portion of the connecting wellbores are sealed against communication of fluids with the surrounding geothermal subterranean zone. A carrier fluid is disposed within the closed-loop well. The closed-loop well is configured so heat energy from the geothermal subterranean zone and / or reaction of reactants in the closed-loop well drives the fluids in the closed-loop well to circulate by thermosiphon and to thereby carry the reactants through the closed-loop well for the reaction and carry a product of the reaction through the closed-loop well for collection.

The invention discloses an all-season hot rod device and a permafrost stability maintenance method, and belongs to the technical field of permafrost protection.The all-season hot rod device comprises a hot rod unit and a refrigeration unit, the hot rod unit is sequentially divided into a condensation section, a heat insulation section and an evaporation section from top to bottom, and the condensation section is arranged above the ground surface; the heat insulation section is arranged in a permafrost season activity layer, the evaporation section is arranged in a permafrost layer, and a gaseous heat-carrying agent on the lower portion of the evaporation section is injected into the upper condensation section through an ejector in the heat insulation section; the refrigeration unit is arranged at the top of the condensation section and can absorb heat of the condensation section and release the heat into the atmosphere; the operation of the hot rod unit and the refrigeration unit is controlled according to the permafrost temperature. The heat rod unit and the refrigeration unit are combined, cold can be continuously conveyed to permafrost all year round, and the heat stability of permafrost engineering is maintained; and meanwhile, the device has the advantages of zero energy consumption, efficient heat transfer, convenience in transportation and installation, is reliable in operation, and can achieve the dual purposes of permafrost protection, energy conservation and efficiency improvement.

The present invention relates to the technical field of geothermal systems, and specifically discloses a buried high-efficiency heat exchanger in a medium-deep geothermal well, comprising: an outer sleeve, an inner sleeve coaxially embedded in the outer sleeve, and a heat storage slow-flow unit located at the lower end of the inner sleeve; the heat storage slow-flow unit effectively separates a heat exchange flow channel and a return flow channel through a flow partition to prevent direct mixing of cold and hot fluids and avoid thermal short circuits; the spiral diverter and the slow-flow unit are used for dynamic adjustment to extend the fluid's underground residence time, enhance turbulence intensity, and improve heat exchange efficiency; the kinetic energy of the fluid is used to drive turbine blades and a rotating shaft to drive the diverter and reciprocating parts to move, and dynamic adjustment of the fluid path can be achieved without external energy; the slow-flow structure and the flexible capsule reduce the impact of the fluid on the formation and reduce reservoir disturbance; the closed-loop design avoids the extraction of groundwater and prevents pollution, and the inner sleeve insulation cavity blocks radial heat transfer and reduces heat loss in the return flow channel.

The invention discloses a geothermal development oil shale and CO2 geological storage integrated method, which relates to the field of complex oil and gas reservoir development, and comprises the following steps: designing U-shaped well process parameters, enabling CO2 fluid to flow to a high-temperature geothermal reservoir through a descending section of a U-shaped well, injecting the CO2 fluid into the oil shale reservoir along an ascending section of a shaft after sufficient heat exchange, preheating the oil shale, and storing the CO2 fluid into a high-temperature geothermal reservoir through the descending section of the U-shaped well. Terrestrial heat extraction and utilization are realized; after the temperature of the oil shale layer rises to the target temperature, the oil shale layer is further heated through manual heating, and in-situ conversion development of the oil shale is achieved; after completion, produced CO2 is injected into the oil shale layer again through the U-shaped well, and collaborative development of CO2 geological storage, geothermal extraction and oil shale in-situ conversion is achieved. Geothermal energy is efficiently extracted through CO2 and used for oil shale in-situ pyrolysis, the extra manual heating cost needed by oil shale in-situ conversion is remarkably reduced, and the economic feasibility of a pure storage project and oil shale in-situ conversion development is improved.

The utility model belongs to the field of crude oil heating, and particularly relates to a crude oil heating device which comprises an air energy heat pump, a water-oil heat exchanger, an air-oil heat exchanger, a solar hot air heat collector and a ground source heat exchanger. A heat exchanger tube pass is arranged in an inner cavity of the water-oil heat exchanger, the two ends of the heat exchanger tube pass are communicated with a heat exchanger oil conveying pipe, and the ground source heat exchanger is communicated with an air source evaporator copper pipe and used for evaporating refrigerants in a pipeline of the ground source heat exchanger and the air source evaporator copper pipe. The heat pump and other two heat sources can form a multi-source heating device, and the system keeps constant temperature through crude oil secondary heat exchange and phase change heat storage, is energy-saving, efficient and pollution-free, can adapt to cold weather, and is suitable for popularization.

The invention relates to a resource recycling technology, in particular to a phase change power generation system based on waste mine recycling, which comprises a double-layer surge tank, a pneumatic turbine, a generator set and a plurality of groups of U-shaped phase change pipes, the U-shaped phase change pipes are distributed and buried in the side wall of a roadway and the ground, the double-layer surge tank is provided with an inner cavity and an outer cavity, high-temperature and high-pressure phase change media are stored in the inner cavity and conveyed to the pneumatic turbine to drive blades of the pneumatic turbine to rotate to do work, and the pneumatic turbine is connected with a main shaft of the generator set. The generator set transmits electric energy to the grid-connected device through a cable. The underground roadway space serves as the arrangement space of power generation equipment, the characteristics of the phase change medium are used for absorbing the formation temperature, certain pressure is formed through free expansion to serve as power for driving the phase change medium to circulate, and the effective utilization rate of energy is remarkably increased without an energy multi-stage conversion link and a multi-stage transmission process.

The invention provides a temperature control type anti-frost-heaving retaining wall structure and a design method thereof, and belongs to the technical field of infrastructure retaining engineering in cold regions, the temperature control type anti-frost-heaving retaining wall structure comprises a retaining wall body, a ground temperature energy conversion system and an intelligent control system, and the ground temperature energy conversion system is connected with the retaining wall body; the ground temperature energy conversion system is used for absorbing ground temperature energy, converting a gas-state heating medium from a low-pressure state into a high-pressure state, adjusting the flow of a liquid-state heating medium, reducing the pressure of the heating medium and dissipating the ground temperature energy into the retaining wall body, and the intelligent control system is electrically connected with the ground temperature energy conversion system; the controller is used for monitoring the temperature of filling soil on one side of the retaining wall body and controlling the ground temperature energy conversion system to operate according to the filling soil temperature so as to control the retaining wall body temperature and filling soil heat. The technical problems that the retaining wall frost heaving disease control difficulty is large, and the frost damage prevention and control effect is poor are solved, and the technical effects that the retaining wall and the filling temperature can be controlled, frost heaving disease control is easy, and the frost damage prevention and control effect is good are achieved.

The invention discloses a Carnot battery system based on a cross-seasonal energy storage technology and a control method, and the Carnot battery system comprises a cascade heat pump unit, a buried pipe heat storage unit, an organic Rankine cycle unit and a renewable heat source utilization energy storage unit, when the temperature of the external environment is high in summer, heat exchange with the external environment can be conducted through the first heat removal and exchange module to provide a heat source for the second heat removal and exchange module, and heat exchange is conducted through the second heat removal and exchange module so that the temperature of a power generation fluid medium can be increased; when the external environment temperature is low in winter, a heat source can be provided for the second heat removal and exchange module through heat exchange between the first heat exchange module and the buried pipe heat storage unit, heat exchange is conducted through the second heat removal and exchange module so that the temperature of a power generation fluid medium can be increased, and the energy storage system is prevented from being affected by the external temperature; and high-efficiency operation in different seasons is ensured. The method provided by the invention solves the technical problem of low power generation efficiency in winter by utilizing environment heat exchange in the Carnot battery energy storage technology in the prior art.

The invention relates to a liquid air energy storage and terrestrial heat coordinated underground space air regulation and control system and method. Comprising a first-stage compressor, a second-stage compressor, a third-stage compressor, an expansion refrigerator, a first-stage compression heat exchanger, a second-stage compression heat exchanger, a third-stage compression heat exchanger, a cold box, a separator, a liquid air storage tank, a cryogenic pump, an evaporator, a cold storage circulating pump, a cold storage box, a compression heat exchange circulating pump, a compression heat storage box, a first heater, a second heater and a third heater. The system comprises a first air expander, a second air expander, a third air expander and a generator. The regeneration heater is used for guiding the compression heat generated by the compressor into the regeneration heater for regeneration and / or guiding the geothermal energy output by the geothermal energy output end into the regeneration heater for regeneration; the rotary wheel dehumidification device is used for performing cryogenic drying on the wet air; the fresh air processing unit is composed of a fresh air filter, a regeneration fan, a regeneration filter and an air supply fan.

The invention relates to the technical field of oil-gas field development and geothermal energy utilization. The invention provides an underground high-temperature composite fluid heating system, which comprises a crude oil separation device, a catalysis module, a high-temperature fluid generation module, an injection well pattern module, a target reservoir and a production well, and is characterized in that the crude oil separation device is communicated with the catalysis module through a first gas inlet pipeline and a second gas inlet pipeline; a first gas outlet pipeline and a second gas outlet pipeline are communicated with a high-temperature fluid generation module, the high-temperature fluid generation module is communicated with an injection well pattern module through a third gas outlet pipeline, the injection well pattern module is communicated with a target reservoir, and the target reservoir supplies energy to the outside through a fourth gas outlet pipeline. And the production well conveys the energy-supplied gas to the heat energy recovery device through the first recovery pipeline. In this way, efficient and uniform heating of the underground reservoir is achieved, energy consumption is reduced while the energy recovery efficiency is improved, and the problems of low heat conduction efficiency and high energy consumption in deep oil gas and hot dry rock development are solved.

The invention relates to a permafrost region pile periphery soil re-freezing construction method which comprises the steps that a plurality of cooling pipes are erected along with a reinforcement cage of a pile foundation in advance, the liquid inlet ends of the cooling pipes are connected with a natural cooling tank through a liquid pump and a refrigerant inflow pipeline, and refrigerants are arranged in the natural cooling tank; the liquid outlet end of the cooling pipe is connected with a natural cooling tank through a refrigerant outflow pipeline to form a refrigerant circulating system; the pile foundation is poured, the multiple cooling pipes are embedded into the pile foundation, in the pile foundation pouring and maintaining process, a liquid pump is started, a refrigerant flows, and the pile foundation and frozen soil on the pile side are cooled through the cooling pipes; after the pile foundation is built, the cooling pipe is separated from the cooling circulation system, the refrigerant in the cooling pipe is pumped out, then evaporated liquor is added into the cooling pipe, and the condensation sections of the hot rods are installed at the liquid outlet end and the liquid inlet end of the cooling pipe, and by the adoption of the method, quick re-freezing of the frozen soil around the pile is achieved, and the construction progress is accelerated.

The invention relates to the technical field of ground source heat pumps, and discloses a ground source heat pump buried pipe zoning layout and cold and heat balance control method which comprises the following steps that the current three-dimensional ground temperature field state of the area where a ground source heat pump buried pipe is located is obtained; predicting a future state sequence of the ground temperature field under different control strategies in a future prediction time domain; solving to obtain an optimal control sequence based on a multi-objective optimization function which aims at minimizing the comprehensive operation cost of the system in the prediction time domain; the multi-objective optimization function at least comprises an energy consumption item representing system short-term operation energy consumption and a balance item representing a ground temperature long-term balance state; and executing the first control action in the optimal control sequence. The prediction model constructed by the invention can combine a physical rule with a data residual continuously learned from actual operation, and ensures that prediction information on which a control decision depends always keeps high fidelity in long-term operation of the system.

The present invention provides a geothermal heat exchange station system, including a water collector, a geothermal heating unit, a heat exchange pipeline arranged in a geothermal well, a control system and a data fusion device, the water inlet ends of the heat exchange pipelines are respectively connected to the water collectors, and the water outlet ends of the heat exchange pipelines are in a tree-like shape; at least two independent heat exchange pipelines form a group, and one water outlet end of each independent heat exchange pipeline in the same group is first connected to each other, and then connected to the geothermal heating unit; the other water outlet end of each independent heat exchange pipeline is respectively connected to the water collector; the control system includes a collection part and a control part for collecting the outlet water temperature and the outlet water flow. The present application divides at least two independent heat exchange pipelines into a group, while reducing the number of sensors and flow meters used; reducing the error between the total outlet water temperature entering the geothermal heating unit and the temperature sensor monitoring; and providing a guarantee that the water temperature and water volume of the total hot water source entering the geothermal heating unit per unit time meet the design requirements.

The utility model discloses a multi-energy coupling rock-soil energy storage cyclic utilization system, which relates to the technical field of geothermal devices and comprises a heat pump host, an office water end, a domestic water end, a solar heat collection system and a rock-soil energy storage cyclic utilization system. A geothermal water supply pipe and a geothermal water return pipe are connected between the rock-soil energy storage recycling system and the heat pump main machine, and a heat supply water supply pipe and a heat supply water return pipe are connected between the other end of the heat pump main machine and the office water end. The multi-energy coupling rock-soil energy storage cyclic utilization system has the functions of heating in winter and refrigerating in summer, and aims at the problem of cold and heat imbalance, the solar heat collection system is assisted to supplement heat load in winter, and the solar heat collection system simultaneously meets the requirement of domestic hot water.

The utility model relates to the technical field of middle-deep layer heat exchange well devices, in particular to an open type middle-deep layer heat exchange well device which comprises a well wall pipe. The central pipe is installed in the well wall pipe, the water filtering pipe is installed on the well wall pipe, and a heat exchange runner is formed between the well wall pipe and the central pipe; the casing pipe is located in the heat exchange well and penetrates through the water-containing stratum to stretch into the rock heat type heat reservoir, and a first annular gap is formed between the outer wall, located in the rock heat type heat reservoir, of the casing pipe and the inner wall of the rock heat type heat reservoir. The water filtering pipe comprises an upper water filtering pipe and a lower water filtering pipe, the upper water filtering pipe is located in the middle of the casing pipe, and the lower water filtering pipe is located at the bottom of the casing pipe or close to the bottom; according to the device, the positions of the upper water filter pipe, the lower water filter pipe and the water stop device are reasonably arranged, so that a heat exchange medium can be in direct contact with a rock heat type heat reservoir, the mineral content in the heat exchange medium is increased, and rock heat type geothermal resources are suitable for hot spring bathing; meanwhile, the heat exchange efficiency of the heat exchange well is improved.

The invention relates to the technical field of civil construction engineering, in particular to effective utilization of geothermal resources and improvement of an energy exchange system. According to the energy pile, dynamic regulation and control of stratum heat balance are achieved through the active heat management technology, and the influence of heat accumulation on sustainable utilization of geothermal resources is effectively prevented; a composite heat extraction structure is adopted, and the heat absorption efficiency of geothermal resources is remarkably improved; a high-thermal-conductivity energy pile comprises a fixed base body, and a water circulation assembly is embedded in the fixed base body. The water circulation assembly comprises a water pumping assembly, a circulation pipeline and a water conveying assembly which are communicated with one another; a heat absorption device is arranged on the outer side of the fixed base body and comprises a plurality of heat absorption columns which are vertically distributed; the heat absorption column is provided with a heat conduction head embedded into the fixed base body.

The invention discloses a concentric tube geothermal well structure capable of improving heat exchange efficiency. The concentric tube geothermal well structure comprises a first well opening section and a second well opening section. The first well opening section comprises a first casing pipe, and first well cementation cement is arranged between the inner wall of the first well opening section and the first casing pipe; the second well opening section is provided with a second casing pipe, second well cementation cement and a central casing pipe; a distance is arranged between the second casing pipe and the well wall of the second well opening section, second well cementation cement is arranged between the center casing pipe and the second casing pipe, a water stopping device is arranged at the upper end of the second well cementation cement and is of a reducing structure with the diameter sequentially increased from top to bottom, and the inner wall of the top end of the water stopping device is connected with the center casing pipe. The bottom end of the water stop device is connected with the second sleeve; a packing structure is arranged at the bottom end of the second well cementation cement, and a permeable section is arranged at the lower end of the packing structure. The invention further provides a construction method of the geothermal well structure. The structure is reliable, the heat exchange efficiency is improved, and the industrial long-term operation requirement is met.

The invention relates to a ground source heat pump unit utilizing terrestrial heat applied to the technical field related to heat pump units, through the arrangement of a connector protection unit, on one hand, the connector of a heat exchange coil pipe can be protected and cannot make direct contact with soil, and the possibility of leakage at the connector is reduced; the water seepage monitoring unit and the fixed-point monitoring unit which are arranged in the joint protection unit in a matched mode can obviously distinguish whether the heat exchange coil pipe seeps water from the upper portion or the lower portion, and according to the water seepage condition of the lower pipe connecting position, leaked water can be concentrated to fall to a monitoring ring firstly, so that a pressure sensor in the monitoring ring is triggered; compared with large-area excavation and maintenance in the prior art, the fixed-point excavation and maintenance method has the advantages that the maintenance difficulty is greatly reduced, the maintenance efficiency is improved, and the maintenance cost investment is reduced.

The utility model belongs to the technical field of renewable energy sources and energy storage and heating, and particularly relates to a heat storage and heating system for consuming abandoned electricity by coupling middle-deep geothermal energy with an electric boiler. The system comprises the middle-deep layer coaxial sleeve geothermal well, the heat pump unit, the electric boiler, the first plate heat exchanger, the heat storage tank, the second plate heat exchanger, the third plate heat exchanger, the water collector and the water segregator, eight loops are formed in total, and different heating requirements under four different working conditions are met. Middle-deep geothermal energy, the electric boiler and an energy storage combined heating system are coupled, renewable geothermal energy is fully utilized, the requirement that the tail end operation water temperature of a building is different in different heating periods is met, the electric boiler energy storage technology is coupled, and wind abandoned light electric power is consumed; on the basis of relieving the pressure of a power grid, clean heating of a building is achieved, and efficient utilization of medium-deep geothermal energy is achieved.

The present disclosure is directed to a geothermal desalination system, comprising; a primary liquid circuit circulating a liquid into a geothermal well and returning heated liquid from a well head of the geothermal well, the primary liquid circuit passing through a desalination plant; a first turbine driven by the heated liquid to produce a mechanical output; and an air compressor driven from the mechanical output to provide a first compressed air supply and a second compressed air supply, wherein the first compressed air supply drives a supply pump to supply salt water to the desalination plant, and the second compressed air supply drives a-start-up pump to initiate circulation in the primary liquid circuit.

The utility model relates to the technical field of medium-deep geothermal resource development and utilization, in particular to a medium-deep heat exchange well ground circulation control device which comprises a ground circulation pipeline which is respectively connected with a heat exchange well water inlet, a heat exchange well water outlet, a low-temperature water source connector and a hot water supply connector. The heat exchange well is used for at least enabling low-temperature water to form circulating runoff in the heat exchange well; the third gate is mounted on the circulating runoff forming pipeline and is used for controlling whether the low-temperature water forms circulating runoff in the heat exchange well or not; the temperature sensor is arranged on the pipeline at the water outlet of the heat exchange well; the control system is connected with the temperature sensor and the third gate, controls opening and closing of the gates according to the temperature of the water outlet of the heat exchange well, adjusts the circulating runoff time of low-temperature water in the heat exchange well and accordingly controls the water temperature of the water outlet of the heat exchange well. The control system is connected with the temperature sensor and the third gate, the gate is controlled to be opened and closed according to the temperature of the water outlet of the heat exchange well, and the water temperature of the water outlet of the heat exchange well is controlled.

In general terms the present invention proposes a system 100 for storing energy. The system comprises upper and lower reservoirs 102, 104, a working fluid 120, and a conduit 106 arranged to permit flow of the working fluid 120 from the upper reservoir 102 to the lower reservoir 104 under gravity. The conduit 106 comprises a turbine generator 110 arranged to be driven by the flow of the working fluid 120 to generate energy. A heat transfer device is arranged to transfer heat to and / or from the upper reservoir 102 and / or lower reservoir 104.

The invention discloses a cold, heat and electricity combined supply system device for hot dry rock. The system comprises a middle-deep layer geothermal heat exchanger, a geothermal source pressure pump, a steam turbine evaporator, an ORC and Kalina steam turbine power generation device, a hot water type absorption unit, a steam turbine condenser, a steam turbine liquid supply pump, a warming heat exchanger, a backheating heat exchanger, a living water heat exchanger, a heat supply pump, a cold circulating pump, a plurality of electric control reversing valves, a user side and a power distribution control device. The system extracts hot dry rock heat energy through the geothermal heat exchanger to drive the power generation device to generate power, and cold or heat is output through the absorption type unit. The warming heat exchanger and the backheating heat exchanger optimize a working medium circulation path, the electric control reversing valve dynamically switches a refrigeration mode, a heating mode and a power generation mode, and the domestic water heat exchanger independently supplies domestic hot water. Efficient combined supply of cold, heat and electricity of geothermal energy is achieved, the problem that the working medium circulation efficiency is low during multi-mode switching is solved, the energy utilization rate is remarkably increased, the operation cost is reduced, and energy conservation and environment protection are achieved.

An inner pipe with a switchable flow channel is arranged in the middle-deep layer buried pipe heat exchanger, and a first opening and a second opening are formed in different depth positions, so that the middle-deep layer buried pipe heat exchanger at least has two operation modes of heat taking and cold taking. The limitation that an existing middle-deep layer buried pipe can only execute one-way heat supply operation is broken through, heat supply and cold supply two-way operation is achieved, the application range of the system is expanded, and the long-term operation stability of the system is improved.

The utility model relates to the technical field of energy conservation and environmental protection, in particular to a solar cross-quarter energy storage and soil source heat pump coupling heating system. The system comprises a solar photo-thermal photovoltaic integrated subsystem, a soil source heat pump coupling heat storage system and a heat user terminal system, the solar photo-thermal photovoltaic integrated subsystem comprises a photo-thermal photovoltaic integrated assembly, a heat exchanger, a storage battery and a circulating pump, and the solar photo-thermal photovoltaic integrated subsystem is used for supplying power to electric equipment of the system and collecting heat; the soil source heat pump coupling heat storage system comprises a soil source heat pump unit, a plate heat exchanger and soil serving as a heat storage medium. And a terminal user maintains proper indoor temperature and required hot water through the heat exchanger. Solar energy and geothermal energy are combined, abundant solar energy is converted into heat energy to be stored in soil in the non-heating season, then the heat energy is taken out through the ground source heat pump for heating in the heating season, renewable energy sources are fully utilized, and the current situation that cold and heat loads are uneven due to long-term operation of the soil is effectively prevented; finally, the purposes of high efficiency, energy conservation and emission reduction are achieved.