88 results about "Geothermal heat pump" patented technology

The invention relates to a heat pipe energy pile, a heat pipe ground source heat pump system and an operation management method of the heat pipe ground source heat pump system, and solves the technical problems that an existing ground source heat pump needs extra power, is high in energy consumption and is difficult to adapt to winter and summer two-way energy supply, and the system comprises a pile foundation, a heat pipe, a heat exchanger and a heat pump unit. The heat pipe is combined with the pile foundation, is a vacuumized closed pipe body which is provided with a capillary core and filled with a phase change working medium, and is divided into an evaporation section at the lower part / side part of the pile foundation and a condensation section at the upper part of the pile foundation; the evaporation section exchanges heat with soil, the condensation section is connected with a heat exchanger, and the heat pump ground source side is connected with the heat exchanger; the capillary core drives a working medium to flow back autonomously through capillary force, and heat transfer or release is achieved. The system has the following effects that the contradiction between low consumption and annual energy supply in the prior art is solved, no extra power is achieved, two-way efficient energy supply in winter and summer is achieved, and energy consumption of a building cold and heat source system is greatly reduced.

The invention discloses a rock-soil temperature field rapid solving method suitable for a ground source heat pump system, and the method comprises the steps: firstly building a three-dimensional unsteady-state heat transfer model in consideration of a buried pipe coaxial structure, a porous arrangement form and the characteristics of a multilayer heterogeneous soil body in the ground source heat pump system; then simulating a thermal response process by using the model, constructing a multi-domain coupled thermal conduction augmentation matrix, performing POD on the matrix, extracting a dominant mode function of a temperature field, and constructing a low-dimensional POD-based mode space; and finally, constructing a POD-Galerkin low-order model, simulating a buried pipe group soil temperature field, performing inversion of a heat source function, and outputting stratum thermophysical parameters. According to the method, the calculation efficiency and the simulation precision of the porous coupling and long-period unsteady state heat transfer process are remarkably improved, the problem that traditional finite element and finite difference methods are high in time consumption in porous strong coupling modeling is solved, and rapid prediction of the soil temperature and robust recognition of the heat source function under a complex stratum and a heat exchange structure can be achieved.

The invention discloses an optimal scheduling method for a ground source heat pump system, and relates to the technical field of new energy utilization and intelligent control of a heat supply system.The method comprises the steps that the ground source heat pump system is divided into a tail end heat exchange layer, a water pump transmission and distribution layer and a source side heat pump coupling layer on the basis of a heat energy conversion and transmission path; constructing a response coupling relation and a mapping model; operating data of three layers of equipment are collected, a time sequence of each layer is established, a dynamic delay structure matching coefficient is calculated, and a multi-layer linkage response lag risk is identified based on a first threshold value; further monitoring a second derivative of the source side temperature change, calculating a thermal inertia interference index, and judging that the thermal response of the source side is abnormal in combination with a second threshold value; and the water supply flow of each branch is extracted, the target water supply value and the total flow of the system are combined, a flow deviation factor is calculated, flow distribution deviation is recognized according to a third threshold value, accurate strategy generation and intelligent scheduling control based on multi-parameter dynamic characteristics are achieved, and the response coordination and operation stability of the system are improved.

The invention relates to the technical field of ground source heat pump operation control, in particular to an optimal adjustment method of a ground source heat pump system, which comprises the following steps: S1, collecting underground soil temperature and system heat load of the ground source heat pump system; s2, calculating a soil heat balance index based on the underground soil temperature; s3, according to the soil heat balance index and the system heat load, the optimized operation mode of the ground source heat pump system is judged; and S4, according to the optimized operation mode judged in the S3, the operation parameters of the ground source heat pump system are adjusted, and a corresponding execution mechanism is driven. According to the method, the operation mode is judged by introducing the soil heat balance index and combining the system heat load, meanwhile, the flow of the circulating water pump, the frequency of the compressor and the opening degree of the heat exchange valve are subjected to interval adjustment, and unification of energy efficiency optimization and long-term balance of the soil heat environment is achieved.

The invention relates to the technical field of ground source heat pump control, in particular to an intelligent cooperative control system for a ground source heat pump system and building energy management. The method comprises the steps that a data collecting and preprocessing unit collects multiple types of data in real time and preprocesses the data to form system state vectors; the load and power generation prediction unit predicts future cooling and heating load and photovoltaic power generation power of the building through a machine learning regression model and a time sequence prediction model; the operation optimization unit generates an optimal operation strategy of the ground source heat pump based on a depth deterministic strategy gradient algorithm; and the multi-source energy coordinated control unit realizes multi-device coordinated control through multi-target mixed integer linear programming. Through combination of prediction data and an optimization algorithm, a dynamic matching relation between load fluctuation and energy supply is fully considered, and the problems of soil heat imbalance and unstable comprehensive energy efficiency ratio of the ground source heat pump system in a traditional fixed parameter operation mode are solved.

The invention provides a solar energy-ground source heat pump coupled intelligent phase change energy storage heat supply method and system which comprises a solar heat collection unit, a ground source heat pump unit, a phase change energy storage unit, a user side heat exchange unit and an AI intelligent control unit. Wherein the solar heat collection unit and the ground source heat pump unit are connected into the input end of the phase change energy storage unit in parallel through a closed-loop pipeline, and the output end of the solar heat collection unit and the output end of the phase change energy storage unit are both connected with the user side heat exchange unit. The AI intelligent control unit is electrically connected with the solar heat collection unit, the ground source heat pump unit, the phase change energy storage unit and the user side heat exchange unit. According to the system, on the premise that the heat supply quality is guaranteed, solar energy which is clean energy is utilized to the maximum extent, dependence on the ground source heat pump and traditional electric power is reduced, operation cost and carbon emission are reduced, and remarkable energy-saving benefits, economical efficiency and environment-friendly value are achieved.

The invention discloses an optimization method of a ground source heat pump, electronic equipment and a program product, and the method comprises the steps: collecting the operation data and environment data of a ground source heat pump system in real time through an edge computing gateway deployed on site; constructing a multi-objective optimization model of the ground source heat pump system on the cloud server; solving the optimization model by adopting a self-adaptive multi-target genetic algorithm, and outputting a Pareto optimal solution set; selecting a final execution scheme from the Pareto optimal solution set according to a preset decision preference weight, generating a control instruction, and issuing the control instruction to the field executor through the edge computing gateway; the soil temperature field evolution is predicted through the buried pipe heat transfer model, and a prediction result is fed back to the optimization model and used for correcting the soil heat balance objective function, and long-term dynamic optimization is achieved. According to the method, collaborative optimization of economy, environmental protection and sustainability can be realized by constructing the multi-objective optimization model fusing the operation cost, the soil heat balance and the carbon emission.

The invention discloses a solar energy and ground source heat pump coupling heat supply method and system based on machine learning, and relates to the technical field of heat supply energy management, and the method comprises the steps: taking the minimum system energy consumption as the target, and using a double-delay depth deterministic strategy gradient neural network model to optimize the output distribution of the solar energy and the ground source heat pump. The model adapts to dynamic working conditions, solar energy is utilized preferentially, and the high-energy-consumption operation time of the ground source heat pump is shortened. Multi-dimensional data are collected through the Internet of Things and an environment monitoring system to construct a state space, a heat supply temperature deviation and equipment operation efficiency reward function is introduced, it is guaranteed that the heat supply temperature is stable, efficient operation of the ground source heat pump is guaranteed, and complex working conditions are dealt with. And full-process automation is realized by relying on a machine learning model, a load distribution sequence is generated through an optimal heat supply load distribution model, and dynamic adjustment is automatically completed by combining a PI controller to output total demand power.

The invention provides a control method and device for a solar ground source heat pump system. The control method and device can be applied to the technical field of building energy conservation and intelligent control. The method comprises the steps that nonlinear conversion is conducted on state information of the solar ground source heat pump system, and multiple pieces of control action information are obtained; executing equipment in the solar ground source heat pump system is controlled based on the target action information, and the running state of the solar ground source heat pump system is updated or kept; wherein the control agent is obtained by training in the following mode: an initial agent executes a current action in a virtual environment, and obtains reward information and post state information of the current action based on a reward function; and updating the intermediate agent based on interaction information obtained by interaction between the intermediate agent and the real environment to obtain a control agent meeting a preset condition.

The invention discloses a ground source heat pump buried pipe backfilling compactness real-time monitoring method, and relates to the technical field of ground source heat pump system construction quality control. The method comprises the following steps: acquiring grouting port pressure time sequence data Pin (t), measuring point pore pressure time sequence data Pi (t), slurry density rho and grouting port space coordinates in real time, extracting pressure wave propagation time to calculate the wave velocity, constructing a physical model for describing the corresponding relation between the wave velocity vp and the compactness D, inverting the measuring point compactness, and calculating the density of the grouting port. And a three-dimensional compactness distribution field is generated through spatial interpolation to identify a defect area, and after defect coordinates are converted into global coordinates, the grout supplementing amount and the grouting pressure are calculated, so that directional grout supplementing is achieved. The method is mainly used for real-time monitoring of compactness, accurate defect recognition and targeted reinforcement in ground source heat pump buried pipe backfilling construction, and construction quality is guaranteed.

The invention relates to the technical field of geothermal energy utilization, and discloses a geological stratification-based deep and shallow coupling ground source heat pump system optimization design method, which comprises the following steps of S1, acquiring geological stratification information of a target site, and thermophysical parameters, hydraulic parameters and mechanical parameters of each stratification; s2, aiming at a deep heat exchanger element and a shallow heat exchanger element; s3, an operation weight vector is introduced and used for defining the dynamic distribution proportion of building loads borne by the deep heat exchange system and the shallow heat exchange system in the whole life cycle; s4, establishing an optimization model taking the minimization of the total cost of the whole life cycle as a target function; s5, solving the optimization model by adopting an optimization strategy to obtain an optimal solution; and S6, outputting an integrated optimization design scheme according to the optimal solution. The physical layout design and the dynamic operation strategy are subjected to integrated collaborative optimization, the stratum heat-water-force coupling effect is comprehensively considered, and the cost of the whole life cycle is minimized.

The utility model provides a cold, warm and hot water triple-generation system of a two-stage compression ground source heat pump. The cold, warm and hot water triple-generation system comprises a compressor, an intermediate heat exchanger, a buried heat exchanger, a plurality of other heat exchangers, a valve assembly and a solar heat collection assembly. The compressor comprises a low-pressure compressor and a high-pressure compressor; an outlet of the low-pressure compressor is connected with an inlet of the high-pressure The intermediate heat exchanger comprises a first intermediate heat exchanger and a second intermediate heat exchanger; other heat exchangers comprise an outdoor heat exchanger and an indoor heat exchanger; the first intermediate heat exchanger is connected with a low-pressure compressor outlet, the outdoor heat exchanger and the second intermediate heat exchanger. The second intermediate heat exchanger is connected with the indoor heat exchanger; the valve assembly comprises a three-way valve and a four-way valve. The ground source heat pump system solves the problems that an existing ground source heat pump system is single in function and low in working efficiency.

The invention provides a simulation method and system for a solar ground source heat pump system, and relates to the technical field of solar ground source heat pump system simulation, and the method comprises the steps: firstly obtaining a soil initial temperature field, and calculating the soil temperature cumulative variation in a future time period through a one-dimensional radial simplified heat transfer model in combination with a predicted load; defining as a soil thermal imbalance risk index; according to comparison between the index and a preset threshold value, selecting an efficiency priority strategy with solar energy immediate utilization as priority or a heat balance priority strategy with soil temperature field adjustment as priority; linkage rules of all subsystems are determined according to a selected strategy, the net heat exchange amount of a geographical pipe heat exchanger and the net heat storage / release amount of a heat storage device are calculated by jointly solving a dynamic model, and then the soil temperature field and the state of the heat storage device are updated; and the simulation step length is iteratively propelled until the period is ended, and finally, the system energy efficiency coefficient, the soil heat balance degree and the time-varying curve of the key parameters are output.

The utility model discloses a buried pipe ground source heat pump system arranged in a rectangular array mode, belongs to the field of common building structures, and solves the problem that a heat exchange vertical shaft of an existing buried pipe ground source heat pump system arranged in the rectangular array mode is prone to functional failure. A heat exchange water input end at the top end of the U-shaped buried heat exchange pipe in each hot well is communicated with one end of a respective ground heat exchange water input pipe, and the other end of the respective ground heat exchange water input pipe is communicated with an output end of a circulating water pump (5); heat exchange water output ends at the top ends of the U-shaped buried heat exchange pipes in the hot wells are communicated with respective ground heat exchange water output pipes, and the other ends of the respective ground heat exchange water output pipes are communicated with an input end of a circulating water pump (5); the sum of the length of the ground heat exchange water input pipe connected to the U-shaped buried heat exchange pipe in each hot well and the length of the ground heat exchange water output pipe connected to the U-shaped buried heat exchange pipe in each hot well is equal.

The application belongs to the technical field of hydrogen energy comprehensive utilization, and particularly discloses an electricity, cold and heat multi-combined supply comprehensive utilization system and method based on hydrogen energy, which comprises a hydrogen fuel cell system, a heat exchanger, a hydrogen internal combustion engine, a flue gas hot water type lithium bromide unit and a ground source heat pump system. Cooling water of the hydrogen fuel cell system cooling pipe network exchanges heat with first circulating medium of the heat system in the heat exchanger, high-temperature flue gas of the hydrogen internal combustion engine flue gas pipe network and cylinder jacket water of the cylinder jacket water pipe network exchange heat with the first circulating medium in the flue gas hot water type lithium bromide unit, and the second circulating medium of the cold system is cooled in the flue gas hot water type lithium bromide unit. The ground source heat pump system comprises a ground source heat pump unit, and is used for exchanging heat between low-temperature circulating water of the ground source heat pump rock-soil side and the first circulating medium. The application fully utilizes hydrogen energy, uses waste heat generated by hydrogen fuel cell and hydrogen internal combustion engine to generate electricity, heating and cooling, and realizes hydrogen energy cascade utilization.

This application relates to a heat pipe energy pile and a heat pipe ground source heat pump system and its operation and management method, solving the technical problems of existing ground source heat pumps requiring additional power and consuming high energy, and being difficult to adapt to bidirectional energy supply in winter and summer. The system includes a pile foundation, heat pipes, a heat exchanger, and a heat pump unit. The heat pipe is integrated into the pile foundation and is a closed tube with a capillary wick, vacuumed, and filled with a phase change working fluid. It consists of an evaporation section at the bottom / side of the pile foundation and a condensation section at the top. The evaporation section exchanges heat with the soil, the condensation section is connected to the heat exchanger, and the heat pump ground source side is connected to the heat exchanger. The capillary wick drives the working fluid to flow back autonomously, realizing heat transfer or release. This application has the following effects: it resolves the contradiction between low energy consumption and year-round energy supply in existing technologies, achieves efficient bidirectional energy supply in winter and summer without additional power, and significantly reduces the energy consumption of building cold and heat source systems.

The invention relates to the field of energy system monitoring, in particular to a ground source heat pump system energy efficiency monitoring platform based on digital twinning, which comprises a buried pipe monitoring module, a heat exchange efficiency analysis module, a buried pipe state analysis module and a health state analysis module. Fluid data such as inlet and outlet temperature, flow and pressure and health state parameters such as vibration frequency, soil moisture content and fluid conductivity are synchronously collected through the buried pipe monitoring module, and the three directions of heat exchange, flowing and health of the buried pipe are comprehensively covered. The heat exchange qualification degree, the flow qualification degree and the health qualification degree are deduced through the buried pipe state analysis module, the influence coefficient is set according to the actual scene, the comprehensive energy efficiency degree is calculated, the health grade is divided according to the comprehensive energy efficiency degree, different treatment aging is formulated for the normal grade, the early warning grade and the abnormal grade of the buried pipe, and the treatment efficiency is improved. And corresponding treatment suggestions are generated according to the qualification conditions of the heat exchange qualification degree, the flow qualification degree and the health qualification degree.

The utility model provides an efficient energy-saving system for outputting green steam through coupling of shallow geothermal energy and a high-temperature heat pump, and belongs to the technical field of energy systems. The problem that an existing steam supply system cannot generate green steam energy is solved. Comprising a shallow ground source heat pump system and a high-temperature heat pump system which are connected in series, the shallow ground source heat pump system comprises a buried pipe heat exchange system, a ground source side automatic make-up pump, a water collector, a ground source side circulating water pump, a water segregator and a ground source heat pump host, and the buried pipe heat exchange system is connected with the water collector and the water segregator; the high-temperature heat pump system comprises a heat source side circulating water pump, an evaporator, a compressor, an electronic expansion valve, a condenser, a flash evaporator, a high-temperature hot water circulating pump, a preheater and a high-temperature heat pump automatic make-up pump; according to the utility model, renewable geothermal energy and certain electric energy are utilized for assistance, high-temperature steam is output, the production load requirement of the park is met, carbon emission is avoided, carbon sink is increased, and the economic benefit is high.

This application relates to a method and device for determining the supply and return water temperature difference of a ground source heat pump system, comprising: obtaining the target operating parameters of the ground source heat pump system at a target time; based on the target operating parameters, a first linear regression equation, and a second linear regression equation, performing iterative calculations using a time-varying system online parameter identification algorithm to determine the target network impedance coefficient and the target heat transfer attenuation coefficient at the target time, wherein the first linear regression equation is obtained by transforming the pump energy consumption equation including the network impedance coefficient factor, and the second linear regression equation is obtained by transforming the host energy consumption equation including the heat transfer attenuation coefficient factor; based on the target network impedance coefficient and the target heat transfer attenuation coefficient, summing the pump energy consumption equation and the host energy consumption equation to construct a total energy consumption objective function; and optimizing the total energy consumption objective function using a nonlinear optimization algorithm to obtain the optimal supply and return water temperature difference when the function value of the total energy consumption objective function is minimized.

The utility model relates to an upper water outlet ground source heat pump system with a passive refrigeration function. The utility model relates to an upper water outlet ground source heat pump system with passive refrigeration, which comprises a first heat exchange module, a second heat exchange module, an upper water outlet module and a lower water outlet module, the second heat exchange module is provided with a third heat exchanger; the first heat exchanger and the second heat exchanger are arranged on the ground source side water path in parallel; and the first heat exchanger and the third heat exchanger are arranged on the use side water path in series. According to the upper water outlet ground source heat pump system with the passive refrigeration function, the second heat exchanger in the first heat exchange module and the third heat exchanger in the second heat exchange module are arranged in parallel, so that the number of water inlets and water outlets is reduced, connection of water inlet and outlet pipelines on the ground source side and the use side is simplified, and the load of a water system is reduced.

An integrated underground heat storage and heat transfer system is provided for CO2-based heating and cooling installations. The invention enables both energy storage and heat exchange in a single Underground Thermal Energy Storage (UTES) system. Excess heat produced during warm weather heats the ground to relatively high temperatures, which in cool weather serves as an artificial geothermal source. A geothermal heat pump (GHP) system reclaims this heat during cool weather. When the GHP is reversed in warm weather, the rejected heat is sent to a separate loop installed in cold earth.

The invention discloses a cross-seasonal energy storage data center waste heat grade improvement coupling heat supply system which comprises a data center cooling and waste heat recovery subsystem, a waste heat collection and intelligent distribution subsystem, an active underground cross-seasonal energy storage body, a coupling type ground source heat pump heat supply subsystem and an intelligent cooperative control system. The subsystems work cooperatively, and recovery, storage and grade improvement of waste heat of the data center and building heating are achieved. Rich low-temperature waste heat in summer and transition seasons is subjected to large-scale storage and grade improvement through a controlled and actively-managed underground cross-seasonal energy storage body, serves as a stable medium-high-temperature heat source in winter, is supplied to a coupling type ground source heat pump system and is finally efficiently and reliably converted into building heating heat, and the building heating efficiency is improved. And maximum gradient utilization of energy is realized.

This invention discloses a hybrid ground source heat pump air conditioning and hot water coupling system, belonging to the field of ground source heat pump technology. It includes: a heat pump unit control module, a circulating water delivery module, a buried pipe temperature detection module, a split / combination control module, a buffer heat storage module, and an operation mode switching module. By integrating heat pump unit control, circulating water delivery, buried pipe heat exchange, split / combination control, buffer heat storage, operation mode switching, and system energy efficiency optimization modules, this invention enables air conditioning and domestic hot water heat pumps to share the same buried pipe heat exchange resources. It can dynamically adjust the series and parallel connection structure and operation mode of the unit's source-side loop according to the season and load. Combined with active soil heat accumulation monitoring and temperature control and intelligent energy efficiency optimization, it specifically addresses the problems of low integration, poor load adaptability, high energy consumption, severe heat accumulation, and insufficient energy efficiency optimization in existing ground source heat pump systems.

The utility model is suitable for the technical field of ground source heat pump systems, and provides a closed ground source cold and heat exchange system which comprises a ground source heat pump unit, a closed ground source cold and heat exchange system, a ground source heat pump primary side circulating water pump, a ground source heat pump secondary side circulating water pump and a drainage water pump with a water outlet communicated with the closed ground source cold and heat exchange system. And the ground source heat pump primary side circulating water pump drives ground source heat pump primary side medium water to circularly flow between the ground source heat pump unit and the closed ground source cold and heat exchange system. According to the closed type ground source cold and heat exchange system, the underground shell-and-tube heat exchanger has the large heat exchange area and the efficient heat exchange structure, rapid and efficient heat exchange can be achieved, the shell-and-tube heat exchanger is compact in structure, small in occupied area and suitable for being used in the underground environment with the limited space, the underground shell-and-tube heat exchanger is reasonable in structural design, and the heat exchange efficiency is improved. Installation and maintenance are convenient, and operation cost is reduced.

The application provides a ground source heat pump system and a control method thereof. Annual historical operation data of the ground source heat pump system are acquired, and the annual historical operation data include cooling season parameters and heating season parameters. A first predicted heat and a predicted heat discharge are calculated according to the cooling season parameters, wherein the sum of the first predicted heat and the predicted heat discharge is equal to a preset heat value. A second predicted heat is calculated according to the heating season parameters. The predicted heat discharge is adjusted so as to make the first predicted heat consistent with the second predicted heat. The technical scheme of the application collects the annual historical operation data of the ground source heat pump system, and combines meteorological characteristics to predict soil heat release and soil heat absorption. The first predicted heat and the second predicted heat of the prediction result are compared to realize accurate control of soil heat balance. When the prediction is inconsistent, the prediction result is adjusted and intervened in time to realize full use of soil constant temperature characteristics of a heat exchange region and improve operation efficiency of the ground source heat pump system.

The invention discloses a ground source heat pump electric heating power conversion calculation method considering variable flow buried pipe heat exchange characteristics, and belongs to the field of comprehensive energy and electric power system comprehensive dispatching, and the ground source heat pump electric heating power conversion calculation method comprises the steps that 1, a thermal model of a single U-shaped buried pipe under variable flow regulation is established, obtaining a linear relation between the temperature of an outlet and an inlet of the fluid and the temperature of a drill hole wall when the flow of the fluid in the single U-shaped buried pipe changes; 2, the method is popularized to a thermal model of a multi-U-shaped buried pipe system, the linear relation between the outlet and inlet fluid temperatures and the borehole wall temperature when the terminal fluid flow changes is obtained, and the extracted total heat is calculated through the flow of each branch and the temperature difference between the inlet and the outlet; and 3, establishing a variable-flow electric-thermal coupling model of the ground source heat pump to obtain an electric-thermal power conversion relation among the heating power of the ground source heat pump, the temperature of the starting end inlet and the output temperature of the drilling field. According to the invention, the fluid flow is used as a continuous regulation variable, so that the operation flexibility of the ground source heat pump system is improved.

This invention belongs to the interdisciplinary field of geotechnical engineering and environmental engineering. To address the problem of low efficiency in currently used soil desalination methods, it provides a roadbed desalination device and method based on electroosmosis. The device includes a photovoltaic power supply system, a soil monitoring system, an intelligent control system, a ground source heat pump system, an electroosmotic desalination system, and a salt collection and discharge system. The photovoltaic power supply system converts solar energy into electricity to drive the electroosmotic desalination system to construct a DC electric field. The ground source heat pump system regulates the temperature of the foundation soil. Combined with the soil monitoring system and the intelligent control system, the dynamic power supply strategy is optimized in real time, enabling the directional migration of salt ions to the salt collection and discharge system for efficient separation and discharge. This invention solves the problems of salt heave and frost heave in saline soil roadbeds through intelligent multi-system linkage. It features high-efficiency desalination, energy saving and environmental protection, long equipment life, and adaptability to complex climatic environments, making it suitable for saline soil roadbed treatment projects in cold regions.

The utility model provides a ground source heat pump heat exchange pipeline and a ground source heat pump system, and relates to the technical field of ground source heat pumps, the ground source heat pump heat exchange pipeline comprises a pipe body, the outer wall of the pipe body is provided with a plurality of embedding grooves, a metal ball is rotatably embedded in each embedding groove, one part of each metal ball is embedded in the corresponding embedding groove, and the other part of each metal ball is exposed; the problems that in the prior art, a heat exchange pipeline of a ground source heat pump system is a plastic pipeline, the heat conductivity coefficient is low, and the plastic pipeline is prone to being abraded when entering an underground directly-buried hole are solved.

The invention provides a Modelica-based ground source heat pump system self-adaptive debugging method, which comprises the following steps of: acquiring operation parameter data of a ground source heat pump system, and analyzing an operation strategy of the ground source heat pump system; according to the structure and the operation strategy of the ground source heat pump system, a physical simulation agent model of the ground source heat pump system is constructed based on Modelica; performing adaptive calibration on parameters of the physical simulation agent model by using the operation parameter data to obtain a calibration model; verifying the accuracy of the calibration model by using the operation parameter data of the other independent time period to obtain a calibration model; self-adaptive virtual debugging is carried out on the calibration model, and an operation strategy is optimized and determined; and periodically collecting operation parameter data, carrying out parameter calibration on the calibration model, and updating the calibration model. According to the ground source heat pump system self-adaptive debugging method based on Modelica, a high-fidelity dynamic model is constructed, and the debugging process is converted into self-adaptive optimization from one-time verification.

The application discloses a geothermal collection system and a construction and use method thereof. The geothermal collection system comprises a plurality of prefabricated geothermal energy piles. An enlarged cavity space is formed below each geothermal energy pile, and the enlarged cavity space is filled with circulating water for geothermal heat exchange. A circulating water cavity is arranged in the prefabricated geothermal energy pile. A heat exchange mechanism for heat exchange between the circulating water cavity and the enlarged cavity space is arranged in the prefabricated geothermal energy pile. The heat exchange mechanism comprises a heat exchange pipe in the circulating water cavity and a heat exchange net in the enlarged cavity space. A releasing mechanism for releasing the heat exchange net after the construction of the energy pile is completed is arranged in the prefabricated geothermal energy pile. The heat exchange structure is integrated into the prefabricated geothermal energy pile, so that the energy pile can be used as a structural component and a heat exchange component, and thus, additional drilling or excavation for installing a ground source heat pump system is not needed, and land cost and installation cost are saved.