Heat storage combined clean heating system for high-speed rail station

Abstract

The invention relates to the technical field of railway clean energy heating, and particularly provides a heat-storage combined clean heating system for a high-speed rail station, which comprises an energy supply part, a heat storage part, a heat supply part and a heat supply part, and is characterized in that the energy supply part at least comprises an air source heat pump and solid heat storage equipment; the heat dissipation tail end can release heat into the high-speed rail station; and the intelligent heating control part is used for enabling the air source heat pump and / or the solid heat storage equipment to release heat to the heat dissipation tail end. By means of the structure, the determined current heating mode can better meet the actual requirements of the high-speed rail station in the mode that the two heat sources are combined, and therefore the reliability of heating is guaranteed. And moreover, by adopting the air source heat pump and the solid heat storage equipment, the environmental protection property is improved.

Description

Technical Field

[0001] The present application relates to the technical field of clean energy heating for railways, and specifically provides a clean heating system for high-speed railway stations using a heat storage system. Background Art

[0002] Under the guidance of the goals of "carbon peak" and "carbon neutrality", clean energy heating has become an important direction of my country's energy transformation. At present, my country is accelerating the construction of a clean energy heating system, replacing traditional high-pollution, high-energy consumption heating methods with a clean energy heating system to achieve a green and low-carbon transformation of energy consumption.

[0003] The high-speed rail network, with its crisscrossing and well-connected lines, has brought people an unprecedented fast, comfortable and convenient travel experience. The rapid development of the high-speed rail network has greatly improved transportation efficiency. Correspondingly, the expansion of the scale of high-speed rail station buildings and the improvement of their functions also need to be promoted simultaneously. In the context of the new era of building energy conservation and carbon reduction, and for the sake of passenger experience, the upgrade and transformation of the clean heating system of high-speed rail station buildings is imminent.

[0004] As an important hub for passenger transportation, high-speed railway stations bear huge passenger traffic and are densely populated places. As a key node for passenger transportation, the design of high-speed railway stations must take into account the huge passenger flow and efficient operation efficiency. For example, compared with other ordinary civil buildings, the building space of high-speed railway stations is usually more spacious to accommodate more passengers and facilities while ensuring smooth passenger flow. In addition, high-speed railway stations usually need to reserve enough space for future expansion and upgrading to adapt to the industry standards of growing visual needs and technological progress. Therefore, as a large building, high-speed railway stations always face certain challenges in energy consumption management in winter heating. Specifically, due to the spacious space of high-speed railway stations, traditional heating systems often find it difficult to meet the uniform heating needs of the space, which will lead to increased energy consumption of high-speed railway stations and thus bring a certain degree of resource waste. Therefore, how to optimize the heating mode to a certain extent while ensuring the heating effect of high-speed railway stations, such as achieving clean heating, has become one of the key issues that the railway industry needs to solve in terms of energy conservation and carbon reduction.

[0005] As a pioneer in achieving the "dual carbon" goal, photovoltaic power generation has been applied to large areas of roofs of buildings such as canopies of many newly built high-speed railway stations; in addition, various heat pumps and heat storage equipment have also been increasingly used in the heating of high-speed railway station buildings, providing a new heating method for large buildings such as high-speed railway stations. In addition, high-speed railway stations are usually closed from 23:00 to 6:00 the next morning, thus providing operating conditions for nighttime heat storage in stations. Against this background, heat storage combined heating technology has emerged, which is particularly expected to provide an important starting point and key means for the development of clean heating for high-speed railway stations in cold regions. How to provide a feasible heating solution for high-speed railway stations through the use of heat storage is a technical problem that needs to be solved urgently in the field, or it has considerable research space. Summary of the invention

[0006] The present application is proposed to solve the above technical problems at least to a certain extent and / or solve at least a part of the above technical problems.

[0007] This application proposes a heat storage combined high-speed railway station clean heating system to solve at least some of the problems existing in the existing heating system based on a single energy source, such as low utilization efficiency, environmental protection, and reliability that need to be further improved. The system adjusts the operating status of the air source heat pump and the solid heat storage device, and with the assistance of the photovoltaic power generation system, it is expected that the current heating mode determined can better adapt to the actual needs of the high-speed railway station, improve the energy efficiency and stability of the heating system, and provide an efficient and environmentally friendly solution for the heating of the high-speed railway station.

[0008] In view of this, the present application provides a heat storage combined clean heating system for high-speed railway stations, the system comprising: an energy supply unit, which at least includes an air source heat pump and a solid heat storage device; a heat dissipation terminal, which can release heat into the high-speed railway station; and an intelligent heating control unit, which is used to: enable the air source heat pump and / or the solid heat storage device to release heat to the heat dissipation terminal.

[0009] With this configuration, the reliability of heating can be guaranteed by combining two heat sources. In addition, the use of air source heat pumps and solid heat storage equipment improves environmental protection.

[0010] For the above-mentioned heat storage combined high-speed railway station clean heating system, in a possible implementation, the energy supply unit also includes a photovoltaic power generation system, and accordingly, the intelligent heating control unit is also used to: at least enable the photovoltaic power generation system to supply energy to the air source heat pump system and / or the solid heat storage equipment.

[0011] Through such a structure, it is possible to further improve environmental protection through the introduction of a solar photovoltaic system, and it is expected that the heating demand in the high-speed railway station will be further optimized through the control of the intelligent heating control unit.

[0012] For the above-mentioned heat storage combined high-speed railway station clean heating system, in a possible implementation manner, at least enabling the photovoltaic power generation system to supply energy to the air source heat pump system and / or the solid heat storage device includes: enabling the photovoltaic power generation system and / or the power grid to supply energy to the air source heat pump system and / or the solid heat storage device.

[0013] With such a configuration, it is possible to improve the heating reliability of the system.

[0014] For the above-mentioned heat storage combined high-speed railway station clean heating system, in a possible implementation manner, enabling the photovoltaic power generation system and / or the power grid to supply energy to the air source heat pump system and / or the solid heat storage device includes: determining the current operating mode of the heat storage combined high-speed railway station clean heating system based on detected or determined parameters, and under the current operating mode, enabling the photovoltaic power generation system and / or the power grid to supply energy to the air source heat pump system and / or the solid heat storage device.

[0015] Through such a structure, the clean heating system of high-speed railway stations with combined heat and storage can better meet the heating needs of high-speed railway stations.

[0016] For the above-mentioned heat storage combined high-speed railway station clean heating system, in a possible implementation manner, determining the current operating mode of the heat storage combined high-speed railway station clean heating system based on detected or determined parameters includes: determining multiple reference operating modes based on one or more detected or determined parameters; determining the current operating mode based on the multiple reference operating modes.

[0017] Through such a structure, we can seek to better meet the current heating needs of high-speed railway stations.

[0018] For the above-mentioned heat storage combined high-speed railway station clean heating system, in a possible implementation, the air source heat pump includes an evaporator, a compressor, a condenser and an electronic expansion valve, the evaporator-the compressor-the condenser-the electronic expansion valve-the evaporator forms a refrigerant circulation loop, and the condenser can release heat to the heat dissipation terminal; and or the heat dissipation terminal includes one or more of a radiator, a floor heating system, a fan coil unit and a water heater.

[0019] Through such a structure, possible ways for air source heat pumps to constitute a clean heating system for high-speed railway stations with combined heat storage and heat dissipation are given, as well as possible forms of heat dissipation terminals.

[0020] For the above-mentioned heat storage combined high-speed railway station clean heating system, in a possible implementation, the solid heat storage device includes a power distribution unit, an electric heat conversion unit and a heat dissipation unit, wherein the power distribution unit is electrically connected to the electric heat conversion unit so as to store heat in the electric heat conversion unit through the power distribution unit, wherein the electric heat conversion unit can release the stored heat to the heat dissipation terminal via the heat dissipation unit.

[0021] Through such a configuration, a possible structural form of the solid heat storage device is provided.

[0022] For the above-mentioned heat storage combined high-speed railway station clean heating system, in a possible implementation, the electric heat conversion unit includes a heat storage host, the heat storage host is electrically connected to the distribution unit through a high-voltage wiring socket, the heat storage host includes a heat exchanger and a heat storage body arranged on the heat exchanger, the heat exchanger can convert electrical energy into thermal energy and transfer the heat to the heat storage body, and the heat storage body can release the heat to the heat dissipation end.

[0023] For the above-mentioned heat storage combined use high-speed railway station clean heating system, in a possible implementation manner, a circulation pump is provided between the heat exchanger and the heat dissipation terminal.

[0024] For the above-mentioned heat storage combined high-speed railway station clean heating system, in a possible implementation, the photovoltaic power generation system includes: a solar photovoltaic panel, a bracket and an inverter, wherein the solar photovoltaic panel is set in the building within the high-speed railway station through the bracket, and the electric energy generated by the solar photovoltaic panel and the electric energy of the power grid can be supplied to the air source heat pump and / or the solid heat storage device through the inverter.

[0025] Through such a composition, a possible composition mode of a solar photovoltaic system is given.

[0026] In the preferred embodiment of the present application, it is mainly based on the two-stage coupling technology of solid heat storage equipment and air source heat pump, and combined with the photovoltaic power generation system, breaking through the limitations of single technology application. In addition, the system can determine the current heating demand based on relevant data inside and outside the station, such as external weather conditions, indoor temperature, photovoltaic power generation conditions, passenger flow data, etc. Based on this, by regulating the operation of air source heat pumps and solid heat storage equipment, a variety of relatively clean heating modes that are compatible with the current heating demand are formed to meet the heating needs of high-speed rail stations under different circumstances, and it is expected to achieve refined management of energy, such as effectively reducing energy consumption, reducing carbon emissions, and improving the economy / environmental protection of the system.

[0027] Additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a schematic diagram of the overall structure of a heat storage combined high-speed railway station clean heating system according to an embodiment of the present application;

[0030] Figure 2 It is a schematic diagram of the operation flow of an air source heat pump in a heat storage combined high-speed railway station clean heating system according to an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of the operation flow of a solid heat storage device in a heat storage combined high-speed railway station clean heating system according to an embodiment of the present application; and

[0032] Figure 4 This is a control logic diagram of the intelligent heating control unit in a heat storage combined high-speed railway station clean heating system according to an embodiment of the present application.

[0033] In the attached figure:

[0034] 100. Heat storage combined high-speed railway station clean heating system;

[0035] 1. Solar photovoltaic system;

[0036] 11. Solar photovoltaic panels; 12. Brackets; 13. Inverters;

[0037] 2. Air source heat pump;

[0038] 21. Evaporator; 22. Compressor; 23. Condenser; 24. Electronic expansion valve; 25. Liquid storage tank; 26. Filter; 27. First fan;

[0039] 3. Solid heat storage equipment;

[0040] 31. Power distribution control device;

[0041] 32. Heat storage host;

[0042] 321, heat exchanger; 322, heat storage body; 323, second fan; 324, high voltage connection socket;

[0043] 4. Circulation pump;

[0044] 5. Heat dissipation end;

[0045] 6. Intelligent heating control unit;

[0046] 7. Inspection components. DETAILED DESCRIPTION

[0047] The preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present application and are not intended to limit the protection scope of the present application.

[0048] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be interpreted as limiting the present application.

[0049] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "one", "said", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present application refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be an intermediate element. In addition, the "connection" or "coupling" used herein may include wireless connection or coupling. The term "and / or" used herein includes any unit and all combinations of one or more associated listed items.

[0050] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0051] In addition, in order to better illustrate the present application, many specific details are given in the specific implementation modes below. Those skilled in the art should understand that the present application can also be implemented without certain specific details. In some examples, the principles of photovoltaic power generation systems, air source heat pumps, solid heat storage devices, etc., which are well known to those skilled in the art, are not described in detail in order to highlight the main purpose of the present application.

[0052] Main reference Figures 1 to 3In a possible implementation, the heat storage combined high-speed railway station clean heating system 100 mainly includes a photovoltaic power generation system 1, an air source heat pump 2 and a solid heat storage device 3, wherein the photovoltaic power generation system can convert solar energy into electrical energy, the air source heat pump mainly releases heat on the surface of the condenser through the circulation of the refrigerant, and the solid heat storage device is mainly used to store heat for flexible release. The heat stored in the solid heat storage device can be transmitted to the heat dissipation terminal 5 that directly releases heat into the high-speed railway station through the circulation pump 4. The intelligent heating control unit 6 is mainly used to intelligently control the photovoltaic power generation system 1, the air source heat pump 2 and the solid heat storage device 3, so that the heat storage combined high-speed railway station clean heating system can meet the heating needs in the high-speed railway station.

[0053] In a possible implementation, the heat dissipation terminal mainly includes but is not limited to radiators, floor heating systems, fan coils, water heaters, etc., which can provide heating services to the high-speed railway station with the help of the operation of heating equipment. For example, the radiator can release heat energy to indoor spaces such as office areas and waiting areas in the high-speed railway station to increase the temperature of the indoor space. The fan coil can be guided by the fan to exchange heat between the air in the space and the surface of the fan coil so as to evenly distribute the heat energy to every corner of the space. The floor heating system can provide heat to spaces such as office areas and waiting areas through floor radiation, and the water heater can provide hot water to staff, passengers, etc.

[0054] In a possible implementation, the photovoltaic power generation system 1 mainly includes a solar photovoltaic panel 11, a bracket 12 and an inverter 13. The solar photovoltaic panel 11 is fixed to a roof or other building in a high-speed railway station through the bracket 12, and the electricity generated by the solar photovoltaic panel 11 is directly supplied to the high-speed railway station through the inverter 13 or the electricity is integrated into the power grid.

[0055] In a possible implementation, the air source heat pump 2 mainly includes an evaporator 22, a compressor 22, a condenser 23 and an electronic expansion valve 24. In this example, the air source heat pump also includes a liquid storage tank 25 and a filter 26. After the ambient air is sucked by the first fan 27 in the outdoor unit, it exchanges heat with the refrigerant flowing through the evaporator on the surface of the evaporator, and the refrigerant absorbs heat and evaporates. The refrigerant that absorbs heat and evaporates is compressed by the compressor into a high-temperature and high-pressure gas and then enters the condenser. The refrigerant flowing through the condenser releases heat to the heat dissipation end of the high-speed railway station, while cooling itself and condensing into a liquid. The condensed liquid refrigerant passes through the liquid storage tank, the filter and the expansion valve in turn and enters the evaporator again, and the cycle forms a closed refrigerant circulation system.

[0056] In a possible implementation, the solid heat storage device 3 mainly includes a power distribution unit, an electric heat conversion unit and a heat dissipation unit 22. The solid heat storage device is mainly used to store electric energy during off-peak electricity price periods or to store electric energy generated by a photovoltaic power generation system so as to flexibly release it according to the needs of the high-speed railway station, thereby improving the utilization efficiency of energy and ensuring the heating needs of the high-speed railway station.

[0057] In a possible implementation, the power distribution unit mainly includes a power distribution control device 31, which receives power from a photovoltaic power generation system or a power grid, and controls the power flow to the electrothermal conversion unit according to system requirements and power conditions to ensure the normal operation of the electrothermal conversion unit and the charging and discharging operations of the solid heat storage device.

[0058] In a possible implementation, the core part of the electric heat conversion unit is the heat storage host 32, which is electrically connected to the power distribution control device through a high-voltage terminal block. The heat storage host is mainly responsible for converting electrical energy into thermal energy through electric heating elements, and transferring the thermal energy to the heat storage body for storage. The heat storage host mainly includes a heat exchanger 321, a heat storage body 322, a second fan 323 and a high-voltage terminal block 324, and the power distribution control device controls the flow of electricity to the high-voltage terminal block of the heat storage host. The heat exchanger can be installed inside or outside the heat storage body, and is mainly used to convert electrical energy into thermal energy and transfer heat to the heat storage body. The heat storage body is usually made of high-temperature resistant materials such as ceramics, concrete, and metal salts. These materials have excellent thermal capacity and thermal conductivity, so they can store heat at a higher temperature and for a longer time. The electric heating element heats the heat storage body, and the heat storage body absorbs and accumulates thermal energy, and releases the thermal energy when needed. For example, the physical structure design of the heat storage body usually needs to ensure that it can withstand a preset number of high-temperature heating cycles and cooling cycles to ensure that the system can operate stably within its service life cycle.

[0059] After the electricity enters the high-voltage terminal socket of the heat storage host, it is converted into thermal energy through the heat exchanger to heat the heat storage body. The second fan can promote the air flow in the heat storage host, so that the heat can flow more fully between the heat exchanger and the heat storage body. In this way, when it is necessary to release heat, the circulation pump 4 is started, and the heat carried by the heat storage body flows from the heat exchanger to each heat dissipation terminal 5 of the terminal heat dissipation system, thereby heating the space of the high-speed railway station. Solid heat storage equipment can store heat in the heat storage body when it is not in operation or during periods of low electricity costs, and use it when additional heat is needed or during periods of high electricity costs, thereby optimizing energy use.

[0060] Among them, the solid heat storage equipment not only has the function of heat energy conversion, but also can work in conjunction with other parts of the system such as the circulation pump to complete the transmission and utilization of heat. For example, the circulation pump is connected to the solid heat storage equipment through a pipeline to extract the heat stored in the heat storage body, and the extracted heat is transported to the space that needs heating in the high-speed rail station through the heat dissipation terminal. For example, a circulation loop is formed between the heat dissipation terminal and the solid heat storage equipment, and by controlling the operating parameters of the circulating water pump, the water flow carrying heat can transfer the heat to the indoor air through the heat dissipation terminal.

[0061] Main reference Figure 4 In a possible implementation, based on the above-mentioned heat storage combined high-speed railway station clean heating system, its intelligent heating control unit determines the current heating plan through calculation and analysis based on the relevant data collected in the high-speed railway station, and controls the coupling mode of the photovoltaic power generation system, air source heat pump and solid heat storage equipment based on the current heating plan. For example, the heat storage combined high-speed railway station clean heating system is also equipped with a user interface, and during the entire heating process, relevant data, modification data / instructions and other information can be displayed on the user interface.

[0062] The intelligent heating control unit as a computer device includes a memory and a processor, wherein the memory is suitable for storing multiple program codes, and the program codes are suitable for being loaded by the processor and running corresponding control logic. The device can be a computer control device formed by various electronic devices.

[0063] The computer device may include a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. The processor, the memory and the input / output interface are connected via a system bus, and the communication interface, the display unit and the input device are connected to the system bus via the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, the corresponding control logic is implemented. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0064] In a possible implementation, multiple / multiple detection components 7 can be deployed to collect data inside / outside the high-speed railway station in real time. For example, the detection components include but are not limited to outdoor temperature and humidity sensors, indoor temperature sensors, photovoltaic power generation monitoring modules, and passenger flow collection devices (such as cameras, etc.). The key data such as external weather conditions, indoor temperature (which can be the indoor space of any area in the high-speed railway station), photovoltaic power generation conditions, etc. are obtained, which are the basis for the system to make heating decisions. For example, external weather conditions can include but are not limited to ambient temperature, humidity, and weather conditions.

[0065] Take the detection component as an example. In this example, the sensor adopts the principle of super-large space measurement point layout. For example, the high-speed railway station includes a personnel retention area, a personnel walking area, and a temperature gradient area. It can be horizontally 0-100m 2 Arrange an area with a vertical height of approximately 1.7m in the vertical direction, which can be appropriately adjusted in combination with the on-site spatial conditions in the high-speed railway station. The photovoltaic power generation system can provide partial or full power support for the heating system of this application, and can also supply power to other electrical facilities in the high-speed railway station (such as lighting, etc.). The photovoltaic power generation system can be installed in areas where solar energy resources can be utilized in the high-speed railway station, such as the roofs of buildings such as station buildings and canopies.

[0066] The current heating strategy can be determined based on one or more of the relevant data and the judgment logic. The judgment is made based on the detected indoor temperature. If the indoor temperature is lower than the set value, the system will start and select a heating mode suitable for the current conditions. The heating mode may include but is not limited to the grid auxiliary mode, the sufficient light mode, the energy storage optimization mode, the off-peak electricity price heat storage mode and the emergency standby mode. The judgment logic is not limited to:

[0067] Judgment logic 1:

[0068] In a possible implementation, based on the detected external weather conditions, when it is determined that the temperature is too low or there is severe weather such as rain, snow, cold, or strong wind, the grid-assisted mode is preferred to ensure the continuity and efficiency of heating.

[0069] In one possible implementation, in the grid-assisted mode, the grid is the main energy source, such as the grid can simultaneously drive the air source heat pump and the solid heat storage device to heat the high-speed rail station. Normally, the solid heat storage device is responsible for 30-40% of the heating demand, and the air source heat pump is responsible for 60-70% of the heating demand. Especially in the case of bad weather, the solid heat storage device can also help the air source heat pump defrost to improve the heating efficiency of the air source heat pump.

[0070] Judgment logic 2:

[0071] In a possible implementation, based on the detected external weather conditions (such as sunny) and the photovoltaic power generation conditions of the photovoltaic power generation system, it is determined whether the power generated by the current photovoltaic power generation system can meet the heating demand. If so, the sufficient sunlight mode is selected to fully utilize clean energy while reducing dependence on the power grid. If not, the power grid auxiliary mode is selected, and specifically, the current heating demand is met by the cooperation of photovoltaic power generation and power grid power supply.

[0072] In one possible implementation, in the sufficient sunlight mode, the photovoltaic power generation system is mainly used as the energy source. The photovoltaic power generation system converts solar energy into electrical energy, directly drives the air source heat pump to provide energy for the high-speed railway station to meet the heating needs inside the high-speed railway station. In this mode, the system can make full use of solar energy resources to achieve clean energy heating and reduce dependence on traditional power grids.

[0073] Judgment logic three:

[0074] In a possible implementation, based on the current passenger flow data (such as passenger flow, passenger flow density, etc.) detected / determined in real time, it is predicted whether the high-speed railway station will be in the passenger flow peak stage. If so, the system selects the energy storage optimization mode to ensure that when the passenger flow peak stage arrives, the heat stored in the solid heat storage device can meet the heating needs of the staff and passengers.

[0075] In one possible implementation, in the energy storage optimization mode (such as when the system lighting conditions are sufficient and it is predicted that the passenger flow will increase), the surplus of the power grid or the photovoltaic power generation system during the day can be used to store energy for the solid thermal storage device to ensure that when the peak passenger flow arrives, there is sufficient reserve heat to meet the heating needs of the system.

[0076] Judgment logic 4:

[0077] In one possible implementation, it is determined whether the current time is nighttime when electricity prices are lower. If so, the system enters a low-peak electricity price heat storage mode. In this mode, the power grid charges the solid heat storage device to ensure that the mode including the solid heat storage device can operate normally.

[0078] In a possible implementation, in the off-peak electricity price heat storage mode, the power grid alone drives the solid heat storage device to store heat and provide heating for the high-speed rail station. The heat stored in the solid heat storage device can be used for heating at night or for auxiliary heating in the morning when the sunlight is poor, so as to reduce the workload of the air source heat pump.

[0079] Judgment logic five:

[0080] In one possible implementation, if an emergency situation such as equipment failure, energy supply interruption or other abnormal heating situation occurs, the system can switch to an emergency standby mode and use a pre-set heating method to ensure that heating is not interrupted.

[0081] In one possible implementation, in emergency standby mode, a backup power source (such as a diesel generator or a backup battery pack) is started and powers the solid heat storage device to meet the basic heating needs of the high-speed rail station, thereby ensuring the normal operation of the high-speed rail station.

[0082] In one possible implementation, a random forest algorithm can be used to determine the optimal heating mode. As an integrated learning method, the random forest algorithm constructs multiple decision trees and combines the prediction results of each decision tree to improve the overall prediction accuracy and robustness, and finally selects the optimal heating mode (current operating mode) by combining the prediction results of each decision tree (reference operating mode). As each of the above judgment logics corresponds to a decision tree, different heating modes may be determined based on different input features. For example, a decision tree uses external weather conditions as the main input to determine whether it is necessary to switch to a grid-assisted mode; a decision tree uses photovoltaic power generation conditions as the main input to determine whether it is necessary to switch to a sufficient light mode; and a decision tree mainly determines whether it is necessary to enter an energy storage optimization mode based on passenger flow predictions. Each decision tree can predict the heating mode under the corresponding conditions respectively, and through the combination of multiple decision trees, the current heating mode of the high-speed rail station is finally determined.

[0083] It can be seen that the combination of multiple decision trees can improve the accuracy and robustness of the heating mode selection. According to the optimal heating mode determined by the random forest algorithm, the working state of the air source heat pump and the solid heat storage device is adjusted to ensure that the system can operate at the highest efficiency in different scenarios. It is understandable that those skilled in the art can determine the number of decision trees, the number of layers, and the specific judgment logic of each decision tree in the random forest algorithm according to actual needs.

[0084] In addition, other optimization algorithms can also be used to determine the optimal heating mode (the current heating mode of the high-speed railway station), such as but not limited to particle swarm optimization algorithms based on swarm intelligence suitable for dealing with nonlinear and multi-dimensional problems, genetic algorithms based on natural selection and genetic mechanisms suitable for dealing with complex optimization problems, and deep reinforcement learning algorithms based on neural networks suitable for dealing with control problems with complex dynamic environments. In addition, continuous self-learning and optimization can be carried out based on historical data and real-time feedback to further improve the accuracy of decision-making. That is: comprehensively utilize one or more of the above judgment logics to determine the current heating mode of the high-speed railway station.

[0085] It can be seen that the heat storage combined high-speed railway station clean heating system of the preferred embodiment of the present application has the following advantages:

[0086] 1. Adopt a heating method that combines multiple energy sources and heat storage. Specifically, a heating system that combines multiple energy sources with photovoltaic power generation systems, air source heat pumps, and solid heat storage equipment can effectively improve heating efficiency and ensure heating stability.

[0087] 2. Efficient energy-saving heating mode. In the early stage of heating, when the heat content in the air is high, air source heat pumps and photovoltaic power generation systems are used as the main heating equipment to make full use of the heat in the air for efficient heating. Due to the adoption of the air source heat pump priority strategy, the direct consumption of electricity can be greatly reduced, so efficient energy utilization and energy saving effects are achieved when thermal energy is abundant. When the outside temperature drops and the heat content in the air decreases, the system will introduce solid heat storage equipment as a supplementary heating source to further improve the heating efficiency. In this way, by dynamically adjusting the combination of heating equipment, the system can achieve optimal energy utilization in different time periods and different climatic conditions, reduce electricity consumption and operating costs, and thus achieve significant energy saving effects.

[0088] 3. Intelligent control of the system. The system dynamically switches the heating mode according to the collected external weather conditions, indoor temperature, photovoltaic power generation, passenger flow data, etc. It can intelligently adjust the proportion of air source heat pumps and solid heat storage devices according to the heating needs under different conditions, so it can maintain efficient operation of heating while saving energy. In this way, it not only reduces energy consumption, but also reduces manpower maintenance costs and improves the overall level of automation of operation. In addition, when dealing with unpredictable factors such as weather changes and passenger flow fluctuations, the random forest algorithm can make more accurate heating decisions based on multi-dimensional historical data and real-time data, significantly improving heating efficiency and stability, achieving energy saving and consumption reduction, automated decision-making, and optimizing cost-effectiveness.

[0089] 4. Environmentally friendly, safe and pollution-free, in line with future development trends. The air source heat pump technology does not include a combustion process, so it does not produce exhaust gas and pollutants, making it environmentally friendly. For example, it eliminates the flammable and explosive safety hazards of traditional boilers and other equipment. In addition, the coupling of air source heat pump technology and heat storage technology improves the energy-saving effect and environmental protection of the system, so it is more in line with the future development trend of comprehensive energy. The photovoltaic power generation technology converts solar energy into electrical energy, which is also environmentally friendly.

[0090] 5. It can effectively solve the problem of imbalance between heating demand and heat supply. Solid heat storage equipment can store heat during low-power periods or store heat generated by photovoltaic power generation systems. Therefore, it can flexibly release the stored heat energy during peak power consumption periods and reduce the system's dependence on peak loads of the power grid.

[0091] 6. It helps to optimize the scheduling of energy. Air source heat pump technology allows energy to be transferred between different temperature levels to adapt to changes in different heating needs. Solid heat storage equipment realizes the transfer of energy in time, such as peak load regulation of electricity. Photovoltaic power generation systems can supply energy within a set time period (and can also be stored through solid heat storage equipment). On this basis, through the organic combination of the three, the energy utilization efficiency of the system is improved, energy scheduling is optimized, and the goal of high efficiency and energy saving is achieved.

[0092] It can be seen that in the preferred embodiment of the present application, since the system adopts a heating method of multi-energy complementarity and heat storage, through the combination of air source heat pump, solid heat storage device and photovoltaic power generation system, it can maximize the use of renewable energy and energy storage technology according to the actual situation, and achieve efficient energy saving of heating and reduce dependence on traditional energy under the premise of ensuring heating reliability. Since the system adopts clean energy technologies such as air source heat pump and photovoltaic power generation system, it can significantly improve environmental protection. In addition, the photovoltaic power generation system in the system is a modular structure design, the number / capacity of solid energy storage equipment can be selected according to actual needs, the scale of air source heat pump technology can be flexibly adjusted according to actual needs, and the number / form / type / configuration position of the heat dissipation terminal can be reasonably changed according to actual needs. Therefore, it can be flexibly configured and expanded according to the actual needs of different high-speed railway stations, and on this basis, it is expected to better adapt to the heating needs of high-speed railway stations of different sizes. In this way, while the system has high reliability and stability, it can be easily adjusted and upgraded according to future expansion needs to ensure that the system can operate stably for a long time.

[0093] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. A heat storage combined high-speed railway station clean heating system, It is characterized in that The system comprises: An energy supply unit, which includes at least an air source heat pump and a solid heat storage device; A heat dissipation terminal that releases heat into the high-speed railway station; and Intelligent heating control unit, which is used to: The air source heat pump and / or the solid heat storage device releases heat to the heat dissipation terminal.

2. The heat storage and high-speed railway station clean heating system according to claim 1, It is characterized in that The energy supply unit also includes a photovoltaic power generation system. Accordingly, the intelligent heating control unit is also used for: At least the photovoltaic power generation system supplies energy to the air source heat pump system and / or the solid heat storage device.

3. The heat storage and high-speed railway station clean heating system according to claim 2, It is characterized in that At least enabling the photovoltaic power generation system to supply energy to the air source heat pump system and / or the solid heat storage device comprises: The photovoltaic power generation system and / or the power grid are enabled to supply energy to the air source heat pump system and / or the solid heat storage device.

4. The heat storage combined use high-speed railway station clean heating system according to claim 2, It is characterized in that The step of enabling the photovoltaic power generation system and / or the power grid to supply energy to the air source heat pump system and / or the solid heat storage device comprises: According to the detected or determined parameters, the current operation mode of the heat storage combined high-speed railway station clean heating system is determined, and In the current operation mode, the photovoltaic power generation system and / or the power grid supplies energy to the air source heat pump system and / or the solid heat storage device.

5. The heat storage and high-speed railway station clean heating system according to claim 4, It is characterized in that Determining the current operation mode of the heat storage combined high-speed railway station clean heating system according to the detected or determined parameters includes: Determining a plurality of reference operating modes according to the detected or determined one or more parameters; The current operating mode is determined according to the multiple reference operating modes.

6. The heat storage combined use high-speed railway station clean heating system according to claim 1, It is characterized in that The air source heat pump comprises an evaporator, a compressor, a condenser and an electronic expansion valve, wherein the evaporator-the compressor-the condenser-the electronic expansion valve-the evaporator forms a refrigerant circulation loop, and the condenser can release heat to the heat dissipation terminal; and or The heat dissipation terminal includes one or more of a radiator, a floor heating system, a fan coil unit and a water heater.

7. The heat storage and high-speed railway station clean heating system according to claim 3, It is characterized in that The solid heat storage device includes a power distribution unit, an electric heat conversion unit and a heat dissipation unit. The power distribution unit is electrically connected to the electrothermal conversion unit so that heat is stored in the electrothermal conversion unit through the power distribution unit, and the electrothermal conversion unit can release the stored heat to the heat dissipation terminal through the heat dissipation unit.

8. The heat storage combined use high-speed railway station clean heating system according to claim 7, It is characterized in that The electrothermal conversion unit includes a heat storage host, and the heat storage host is electrically connected to the power distribution unit through a high-voltage connection socket. The heat storage host comprises a heat exchanger and a heat storage body arranged on the heat exchanger. The heat exchanger can convert electrical energy into thermal energy and transfer the heat to the heat storage body, and the heat storage body can release the heat to the heat dissipation terminal.

9. The heat storage combined use high-speed railway station clean heating system according to claim 8, It is characterized in that A circulation pump is arranged between the heat exchanger and the heat dissipation terminal.

10. The heat storage combined use high-speed railway station clean heating system according to claim 3, It is characterized in that The photovoltaic power generation system comprises: a solar photovoltaic panel, a bracket and an inverter. Among them, the solar photovoltaic panel is set in the building in the high-speed railway station through the bracket, and the electric energy generated by the solar photovoltaic panel and the electric energy of the power grid can be supplied to the air source heat pump and / or the solid heat storage device through the inverter.

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