Geothermal energy heat management system of energy storage system

Abstract

The utility model relates to the field of electrochemical battery systems, in particular to a geothermal energy heat management system of an energy storage system. The system achieves effective conversion and storage of geothermal energy through the heat exchange plate set, the water pump, the water tank, the switch valve set, the geothermal energy heat exchanger and other assemblies, and the energy utilization efficiency is improved; the water tank is connected with an auxiliary temperature control circuit, accurate control over the system temperature can be achieved, and it is ensured that the system operates stably; the design of the heat exchange plate group in a tubular honeycomb heat exchange mode is adopted, so that the heat exchange efficiency is improved, and the system can more effectively utilize geothermal energy for heat exchange; through the arrangement of the switch valve group, the flowing path and the heat exchange direction of geothermal energy in the system can be flexibly adjusted and controlled, so that the energy requirements under different conditions are met; the water tank adopts an expansion water tank design, so that the phenomenon of thermal expansion and cold contraction can be effectively handled, and the stability and reliability of system operation are ensured.

Description

Technical Field

[0001] The utility model relates to the field of electrochemical battery systems, and particularly to a geothermal energy thermal management system for an energy storage system. Background Art

[0002] In the field of thermal management, geothermal energy has attracted much attention as a clean and sustainable energy source. The geothermal energy thermal management system for an energy storage system is a system that utilizes geothermal energy for thermal management. This system realizes the storage and utilization of energy through components such as a heat exchange plate group, a water pump, a water tank, a switching valve group, and a geothermal energy heat exchanger.

[0003] Although the geothermal energy thermal management system for an energy storage system has potential in utilizing geothermal energy, there are still some challenges that need to be addressed. These include, but are not limited to: Efficiency: How to improve the energy conversion efficiency of the system to make the utilization of geothermal energy more efficient? Cost: The construction and operation costs of the current system are relatively high. How to reduce the costs to make this technology more competitive? Reliability: How to ensure the reliability of each component in the system? How to deal with potential failures and losses? Scalability: How to achieve large-scale deployment of the system to meet the energy demands in different scenarios? Environmental impact: The exploitation and utilization of geothermal energy may have an impact on the surrounding environment. How to reduce the adverse effects on the ecological environment and achieve sustainable development?

[0004] Solving these problems will contribute to promoting the development of the geothermal energy thermal management technology for an energy storage system, and facilitating the utilization of clean energy and sustainable development. Summary of the Utility Model

[0005] The utility model provides a geothermal energy thermal management system for an energy storage system, which can solve the problems in the above related technologies. The technical solution is as follows:

[0006] A geothermal energy thermal management system for an energy storage system is provided, and the system includes a heat exchange plate group, a water pump, a water tank, a switching valve group, and a geothermal energy heat exchanger;

[0007] One end of the water pump is connected to the heat exchange plate group, the other end of the water pump is connected to the switching valve group, and the other end of the switching valve group is respectively connected to one end of the water tank and the geothermal energy heat exchanger;

[0008] The other end of the water tank is connected to the heat exchange plate group.

[0009] Optionally, the heat exchange plate group includes a first heat exchange plate to an Nth heat exchange plate, where N is a positive integer.

[0010] Optionally, the heat exchange plate group adopts a tubular honeycomb heat exchange method.

[0011] Optionally, the switching valve group includes a first switching valve 1, a second switching valve 2, and a third switching valve 3.

[0012] Optionally, one end of the first switching valve 1 is connected to one end of the water tank, and the other end of the first switching valve 1 is connected to the geothermal energy heat exchanger;

[0013] One end of the second switching valve 2 is connected to the other end of the water pump, and the other end of the second switching valve 2 is connected to the geothermal energy heat exchanger;

[0014] One end of the third switching valve 3 is connected to the other end of the water pump, and the other end of the third switching valve 3 is connected to one end of the water tank.

[0015] Optionally, the water tank is an expansion water tank.

[0016] Optionally, the water tank is connected with an auxiliary temperature control circuit.

[0017] Optionally, for the heat exchange direction one of the geothermal energy heat management system of the energy storage system, it is from the first heat exchange plate to the direction of the water pump, and after passing through the second switching valve 2, it flows to the geothermal energy heat exchanger;

[0018] For the heat exchange direction two of the geothermal energy heat management system of the energy storage system, it is from the geothermal energy heat exchanger to the direction of the first switching valve 1 and flows into the water tank, then flows out from the other end of the water tank and flows into the Nth heat exchange plate.

[0019] The technical effects brought by a geothermal energy heat management system of an energy storage system provided by the present utility model are as follows.

[0020] According to the provided information, the technical effects of the geothermal energy heat management system of the energy storage system mainly include the following aspects:

[0021] Energy conversion and storage: Through components such as a heat exchange plate group, a water pump, a water tank, a switching valve group, and a geothermal energy heat exchanger, the effective conversion and storage of geothermal energy are realized, and the energy utilization efficiency is improved.

[0022] Temperature control: The water tank is connected with an auxiliary temperature control circuit, which can realize the precise control of the system temperature and ensure the stable operation of the system.

[0023] Heat exchange efficiency: The design of the heat exchange plate group adopting the tubular honeycomb heat exchange method improves the heat exchange efficiency, enabling the system to more effectively utilize geothermal energy for heat exchange.

[0024] Flexibility and controllability: Through the setting of the switching valve group, the flow path and heat exchange direction of geothermal energy in the system can be flexibly adjusted and controlled to meet the energy requirements under different conditions.

[0025] Expansion water tank design: The water tank adopts the expansion water tank design, which can effectively cope with the phenomenon of thermal expansion and contraction and ensure the stability and reliability of the system operation.

[0026] Overall, this technical solution has characteristics such as efficient energy conversion, precise temperature control, and optimized heat exchange efficiency, and is expected to play an important role in the field of geothermal energy utilization, providing a feasible solution for the application of clean energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It shows a schematic diagram of the system structure of the geothermal energy thermal management system of the energy storage system shown in an exemplary embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the objectives, technical solutions, and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail with reference to the drawings.

[0029] As used herein, "a plurality of" means two or more. "And / or" describes the associated relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0030] Figure 1 It shows a schematic diagram of the system structure of the geothermal energy thermal management system of the energy storage system shown in an exemplary embodiment of the present application.

[0031] An energy storage system geothermal energy thermal management system, the system includes a heat exchange plate group, a water pump, a water tank, a switching valve group, and a geothermal energy heat exchanger; one end of the water pump is connected to the heat exchange plate group, the other end of the water pump is connected to the switching valve group, and the other end of the switching valve group is respectively connected to one end of the water tank and the geothermal energy heat exchanger; the other end of the water tank is connected to the heat exchange plate group.

[0032] The heat exchange plate group includes a first heat exchange plate #1 to an Nth heat exchange plate #N, where N is a positive integer. The heat exchange plate group is in a tubular honeycomb heat exchange mode.

[0033] The switching valve group includes a first switching valve 1, a second switching valve 2, and a third switching valve 3. One end of the first switching valve 1 is connected to one end of the water tank, and the other end of the first switching valve 1 is connected to the geothermal energy heat exchanger; one end of the second switching valve 2 is connected to the other end of the water pump, and the other end of the second switching valve 2 is connected to the geothermal energy heat exchanger; one end of the third switching valve 3 is connected to the other end of the water pump, and the other end of the third switching valve 3 is connected to one end of the water tank.

[0034] Among them, the water tank is an expansion water tank, and the water tank is connected with an auxiliary temperature control circuit.

[0035] Further illustrate the heat transfer direction of the geothermal energy heat management system of the energy storage system. The first heat transfer direction of the geothermal energy heat management system of the energy storage system is from the first heat exchange plate to the water pump direction, and after passing through the second switching valve 2, it flows to the geothermal energy heat exchanger; the second heat transfer direction of the geothermal energy heat management system of the energy storage system is from the geothermal energy heat exchanger to the first switching valve 1 direction and flows into the expansion tank, flows out from the other end of the expansion tank and flows into the Nth heat exchange plate, and then enters the heat exchange plate group.

[0036] Furthermore, there is also a description of the working process of the third switching valve 3. When the cooling capacity (or heat quantity) of the geothermal energy heat exchanger is insufficient, it is necessary to start the auxiliary refrigeration (or heating) of the expansion tank. At this time, in order to reduce the unnecessary cooling capacity (or heat quantity) loss of the system, it is necessary to close the first switching valve 1 and the second switching valve 2, and open the third switching valve 3. Thus, the circulation path of the system is from the water pump to the third switching valve 3, the third switching valve 3 to the expansion tank, the expansion tank to the heat exchange plate group, and the heat exchange plate group to the water pump.

[0037] Among them, the geothermal energy heat management system of the energy storage system is also connected with a state monitoring device, and the state monitoring device is used to monitor the temperature of the heat exchange plate group, such as setting a minimum temperature and a maximum temperature (or a certain range). In one example, in response to the temperature of the heat exchange plate group being lower than 4 degrees Celsius, the power supply of the expansion tank is started for auxiliary heating, and in response to the temperature of the heat exchange plate group being higher than 40 degrees Celsius, the power supply of the expansion tank is started for auxiliary refrigeration. If the heat exchange plate group includes multiple heat exchange plates, it is possible to judge whether to perform auxiliary refrigeration or heating by monitoring the extreme temperature values. For example, in a heat exchange plate group composed of 5 heat exchange plates, if the current temperature of the heat exchange plate with the highest temperature is higher than 40 degrees Celsius, the power supply of the expansion tank is started for auxiliary refrigeration.

[0038] In addition, the geothermal energy heat management system can be further optimized.

[0039] Optimization of heat exchange plate materials: Use materials with high thermal conductivity and corrosion resistance, such as copper, aluminum or stainless steel, to improve the heat exchange efficiency and the durability of the system. At the same time, by optimizing the structural design of the heat exchange plate, such as increasing the heat exchange surface area or improving the fluidity of the heat exchange channel, the heat exchange efficiency is further improved.

[0040] Intelligent temperature control system: Introduce an intelligent temperature control system, combine sensors and automatic control algorithms to achieve precise monitoring and adjustment of the system temperature. For example, dynamically adjust the release and storage of geothermal energy according to indoor and outdoor temperatures and energy consumption requirements to improve the energy efficiency performance of the system.

[0041] Energy recovery and utilization technology: Add a waste heat recovery device to the system design, and use the waste heat generated by the system to heat other media, such as heating water or a water heater, thereby improving the energy utilization efficiency and reducing energy waste.

[0042] Safety enhancement measures: Install multiple layers of safety protection devices in the system, such as temperature monitoring and alarm systems, pressure relief valves, etc., to detect and respond to system anomalies in a timely manner, ensuring the safe and reliable operation of the system.

[0043] Environmental impact assessment and ecological protection measures: Conduct an environmental impact assessment before system construction to understand the possible impacts of the system on the surrounding environment, and take corresponding environmental protection measures, such as ecological restoration, waste treatment, etc., to reduce the negative impacts of the system on the surrounding environment.

[0044] These schematic optimization measures will help improve the overall performance and sustainability of the geothermal energy thermal management system, and promote the development and application of clean energy technologies.

[0045] In addition, the parameters of each device component are further described.

[0046] Heat exchange plate group: The main function of the heat exchange plate group is to achieve heat transfer between geothermal energy and water. During operation, geothermal energy flows through the heat exchange plate group through pipes and exchanges heat with the water passing through the plate group, thereby increasing or decreasing the water temperature and achieving energy storage or release.

[0047] Water pump: The function of the water pump is to pump water from the water tank to the heat exchange plate group and send the water after heat exchange back to the water tank. The water flow generated during the operation of the water pump forms a cycle between the heat exchange plate group and the water tank, thereby achieving heat exchange between geothermal energy and water.

[0048] Expansion water tank: The water tank is a container for storing water, which plays a role in energy storage and stabilizing the system operation. During system operation, the water in the water tank continuously flows through the circulation system, receiving and releasing geothermal energy to achieve energy storage and regulation, and performing auxiliary heating and auxiliary cooling.

[0049] Switch valve group: The function of the switch valve group is to control the direction and flow rate of the water flow. By controlling the on-off state of the switch valves, the switching and control of the water flow can be achieved, thereby adjusting the heat transfer path and direction between geothermal energy and water in the system.

[0050] Geothermal energy heat exchanger: The geothermal energy heat exchanger is a key component for heat exchange between geothermal energy and water. During system operation, geothermal energy exchanges heat with water through the geothermal energy heat exchanger, increasing or decreasing the water temperature, thereby achieving energy conversion and storage.

[0051] The coordinated operation of these components ensures the normal operation of the geothermal energy thermal management system and realizes the efficient utilization of geothermal energy and effective energy storage.

[0052] The technical effects brought by the geothermal energy thermal management system of the energy storage system provided by the present utility model are as follows.

[0053] According to the provided information, the technical effects of the geothermal energy thermal management system of this energy storage system mainly include the following aspects:

[0054] Energy conversion and storage: Through components such as heat exchange plate groups, water pumps, water tanks, switch valve groups, and geothermal energy heat exchangers, the effective conversion and storage of geothermal energy are achieved, improving energy utilization efficiency.

[0055] Temperature control: The water tank is connected with an auxiliary temperature control circuit, which can achieve precise control of the system temperature and ensure the stable operation of the system.

[0056] Heat exchange efficiency: The design of the heat exchange plate group using the tubular honeycomb heat exchange method improves the heat exchange efficiency, enabling the system to utilize geothermal energy for heat exchange more effectively.

[0057] Flexibility and controllability: By setting the switch valve group, the flow path and heat exchange direction of geothermal energy in the system can be flexibly adjusted and controlled to meet the energy requirements under different conditions.

[0058] Expansion water tank design: The water tank adopts the expansion water tank design, which can effectively cope with the phenomenon of thermal expansion and contraction, ensuring the stability and reliability of the system operation.

[0059] Generally speaking, this technical solution has the characteristics of high-efficiency energy conversion, precise temperature control, optimized heat exchange efficiency, etc., and is expected to play an important role in the field of geothermal energy utilization, providing a feasible solution for the application of clean energy.

[0060] The above embodiments of the present utility model are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A geothermal thermal management system for an energy storage system, characterized in that The system includes a heat exchange plate group, a water pump, a water tank, a switching valve group, and a geothermal energy heat exchanger; One end of the water pump is connected to the heat exchange plate group, the other end of the water pump is connected to the switching valve group, and the other end of the switching valve group is respectively connected to one end of the water tank and the geothermal energy heat exchanger; The other end of the water tank is connected to the heat exchange plate group.

2. The geothermal energy thermal management system of the energy storage system according to claim 1, characterized in that The heat exchange plate group includes a first heat exchange plate to an Nth heat exchange plate, where N is a positive integer.

3. The geothermal energy thermal management system of the energy storage system according to claim 2, characterized in that, The heat exchange plate group adopts a tubular honeycomb heat exchange method.

4. The geothermal energy thermal management system of the energy storage system according to claim 2, wherein The switching valve group includes a first switching valve (1), a second switching valve (2), and a third switching valve (3).

5. The geothermal energy heat management system of the energy storage system according to claim 4, characterized in that One end of the first switching valve (1) is connected to one end of the water tank, and the other end of the first switching valve (1) is connected to the geothermal energy heat exchanger; One end of the second switching valve (2) is connected to the other end of the water pump, and the other end of the second switching valve (2) is connected to the geothermal energy heat exchanger; One end of the third switching valve (3) is connected to the other end of the water pump, and the other end of the third switching valve (3) is connected to one end of the water tank.

6. The geothermal energy thermal management system of the energy storage system according to any one of claims 1 to 5, characterized in that, The water tank is an expansion water tank.

7. The geothermal energy thermal management system of the energy storage system according to claim 6, characterized in that, The water tank is connected with an auxiliary temperature control circuit.

8. The geothermal energy heat management system of the energy storage system according to claim 4, characterized in that For the first heat exchange direction of the geothermal energy heat management system of the energy storage system, it flows from the first heat exchange plate in the direction of the water pump, and after passing through the second switching valve (2), it flows to the geothermal energy heat exchanger; For the second heat exchange direction of the geothermal energy heat management system of the energy storage system, it flows from the geothermal energy heat exchanger in the direction of the first switching valve (1) and flows into the water tank, flows out from the other end of the water tank and flows into the Nth heat exchange plate.

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