Energy storage structure

Abstract

The invention provides an energy storage structure, which comprises an energy storage cavity, a water body and an energy storage device, the multiple separation structures are arranged in the energy storage cavity at intervals in the vertical direction so as to divide the energy storage cavity into multiple energy storage chambers, the multiple energy storage chambers correspond to the stratum where the energy storage chambers are located, and each energy storage chamber is provided with a water inlet and a water outlet oppositely in the horizontal direction; the water inlet pipeline is communicated with the water inlet through a water inlet valve, and the water outlet pipeline is communicated with the water outlet through a water outlet valve. According to the technical scheme, the problem that the application effect is poor due to the fact that the energy temperature provided by an energy storage structure is not matched with the needed energy temperature in the related technology is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of energy storage technology, and more specifically, to an energy storage structure. Background Technology

[0002] The energy storage structure in the related technology includes a water body, at least a portion of which is located below ground level. The water body has an energy storage cavity for storing an energy storage medium. The water body is connected to heating and cooling equipment to store the heat generated by the heating equipment or the cold energy generated by the cooling equipment in the energy storage medium of the water body.

[0003] Because the energy storage medium is mixed with hot and cold substances in the energy storage cavity, it disrupts the temperature stratification corresponding to different geological formations. When using energy storage media with corresponding temperature layers, the provided energy temperature does not match the required energy temperature, resulting in poor application performance. Summary of the Invention

[0004] The main objective of this invention is to provide an energy storage structure to solve the problem that the energy temperature provided by the energy storage structure in related technologies does not match the required energy temperature, resulting in poor application performance.

[0005] To achieve the above objectives, according to one aspect of the present invention, an energy storage structure is provided, comprising: an energy storage cavity containing water; multiple partition structures spaced apart vertically within the energy storage cavity to divide the energy storage cavity into multiple energy storage chambers, each energy storage chamber corresponding to its respective geological stratum, each energy storage chamber having a water inlet and an outlet arranged horizontally opposite to each other; an inlet pipe and an outlet pipe, the inlet pipe being connected to the inlet via an inlet valve, and the outlet pipe being connected to the outlet via an outlet valve.

[0006] Furthermore, the bottom wall of each energy storage chamber is arched.

[0007] Furthermore, the distance between the highest point of the arch and the inlet is less than the distance between the highest point of the arch and the outlet.

[0008] Furthermore, multiple flow damping plates are installed on the bottom wall of each energy storage chamber, with the multiple flow damping plates located between the water inlet and the highest point of the arch.

[0009] Furthermore, the baffle closest to the inlet among the multiple baffles is the highest baffle, and the baffle closest to the highest baffle among the multiple baffles is the lowest baffle, wherein the highest baffle is lower than the highest point of the arch.

[0010] Furthermore, multiple flow dampers in each energy storage chamber divide the space between the inlet and the highest point of the arch into multiple buffer pools, the tops of which are interconnected.

[0011] Furthermore, the volume of the cache pool closest to the inlet among the multiple cache pools is smaller than the volumes of the other cache pools.

[0012] Furthermore, the distance between two adjacent flow dampers on one bottom wall of two adjacent energy storage chambers is equal everywhere. Along the width direction of the bottom wall of the energy storage chamber, the distance between two adjacent flow dampers on the other bottom wall of two adjacent energy storage chambers first decreases, then increases, and then decreases again.

[0013] Furthermore, each energy storage chamber has multiple guide channels on its bottom wall. Each guide channel extends along the length of the bottom wall of the energy storage chamber, and the multiple guide channels are located between the highest point of the arch and the water outlet.

[0014] Furthermore, the width of the guide channel on one bottom wall of two adjacent energy storage chambers is equal everywhere, while the width of the guide channel on the other bottom wall of two adjacent energy storage chambers gradually decreases along the direction from the highest point of the arch to the outlet.

[0015] The energy storage structure, utilizing the technical solution of this invention, includes: an energy storage cavity, multiple partition structures, an inlet pipe, and an outlet pipe. Water is contained within the energy storage cavity. Multiple partition structures are spaced vertically within the energy storage cavity to divide it into multiple energy storage chambers, each corresponding to its respective geological stratum. Each energy storage chamber has an inlet and an outlet positioned horizontally opposite each other. This design ensures physical isolation of water bodies at different temperatures, maintaining the stability of temperature stratification and preventing the mixing of hot and cold water. The inlet pipe is connected to the inlet via an inlet valve, and the outlet pipe is connected to the outlet via an outlet valve. Each energy storage chamber has an independent inlet and outlet, allowing for individual filling and emptying of each chamber via separate inlet and outlet valves. This enables more accurate control and management of water bodies at different temperatures, reducing unnecessary energy exchange between water bodies. In this way, the energy storage structure can open the outlet valve of the matched energy storage chamber according to the required energy temperature, and the energy temperature provided by the energy storage chamber matches the required energy temperature, thus improving the application effect. Therefore, the technical solution of this application effectively solves the problem in related technologies where the energy temperature provided by the energy storage structure does not match the required energy temperature, resulting in poor application effect. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A simplified structural diagram of an embodiment of the energy storage structure according to the present invention is shown;

[0018] Figure 2 It shows Figure 1 A top view of an energy storage chamber in the energy storage structure;

[0019] Figure 3 It shows Figure 1 A top view of another energy storage chamber of the energy storage structure.

[0020] The above figures include the following reference numerals:

[0021] 10. Energy storage cavity;

[0022] 20. Separation structure; 21. Energy storage chamber; 211. Flow buffer plate; 212. Buffer pool; 213. Flow guide channel; 22. Inlet; 23. Outlet;

[0023] 31. Inlet pipe; 32. Outlet pipe;

[0024] 41. Inlet valve; 42. Outlet valve. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0028] According to one aspect of this application, an energy storage structure is provided. An embodiment of the energy storage structure includes: an energy storage cavity 10, a plurality of partition structures 20, an inlet pipe 31, and an outlet pipe 32. Water is disposed within the energy storage cavity 10. The plurality of partition structures 20 are spaced vertically within the energy storage cavity 10 to divide the energy storage cavity 10 into a plurality of energy storage chambers 21, each corresponding to its respective geological stratum. Each energy storage chamber 21 has an inlet 22 and an outlet 23 arranged horizontally opposite each other. The inlet pipe 31 is connected to the inlet 22 via an inlet valve 41, and the outlet pipe 32 is connected to the outlet 23 via an outlet valve 42. At least a portion of the energy storage cavity 10 is located below ground level. The energy storage cavity 10 is used to store water, which serves as the energy storage medium. Soil has natural thermal insulation properties, enabling heat and cold storage, and reducing the cost of existing heat and cold storage equipment, thereby enabling large-scale heat and cold storage.

[0029] In the embodiment of the energy storage structure, multiple energy storage chambers 21 correspond to their respective geological strata, and each energy storage chamber 21 is horizontally arranged with an inlet 22 and an outlet 23. This design ensures that water bodies of different temperatures are physically isolated, maintaining the stability of temperature stratification and avoiding mixing of hot and cold water. The inlet pipe 31 is connected to the inlet 22 via an inlet valve 41, and the outlet pipe 32 is connected to the outlet 23 via an outlet valve 42. Each energy storage chamber 21 has an independent inlet 22 and outlet 23, which allows for individual filling and emptying of each chamber 21 via the inlet and outlet pipes 31 and outlet pipes 32 using separate inlet and outlet valves 41 and 42. This enables more accurate control and management of water bodies of different temperatures, reducing unnecessary energy exchange between water bodies. Thus, according to the required energy temperature, the energy storage structure can open the outlet valve 42 of the matched energy storage chamber 21, ensuring that the energy temperature provided by that chamber matches the required energy temperature, thereby improving application efficiency. Therefore, the technical solution of the embodiment of the energy storage structure effectively solves the problem that the energy temperature provided by the energy storage structure does not match the required energy temperature, resulting in poor application effect.

[0030] It should be understood that the energy storage cavity 10 is quite deep, reaching several meters, tens of meters, or even hundreds of meters. The partition structure 20 is a reinforced concrete structure, which includes a frame or base, concrete set on the frame or base, and waterproofing and anti-corrosion agents filled in the concrete. The waterproofing and anti-corrosion agents can prevent the reinforced concrete structure from being eroded in the groundwater environment and improve its durability.

[0031] like Figures 1 to 3 As shown, the bottom wall of each energy storage chamber 21 is arched.

[0032] The arched bottom wall design described above increases the structural stability of the energy storage chamber 21 and reduces the pressure of water on the bottom wall, thereby reducing the risk of structural damage. In addition, the arched structure helps the water to form an upward natural flow within the energy storage chamber 21, promoting a more uniform distribution of water temperature, especially in the upper region of the energy storage chamber 21, thus improving energy utilization efficiency.

[0033] like Figures 1 to 3 As shown, the distance between the highest point of the arch and the inlet 22 is less than the distance between the highest point of the arch and the outlet 23.

[0034] The above design utilizes the natural flow trend of water. When water enters from the inlet 22, due to the shorter distance between the inlet 22 and the highest point of the arch, the water tends to flow upwards, thus filling the upper space of the energy storage chamber 21 more quickly. When water exits from the outlet 23, due to the longer distance between the outlet 23 and the highest point of the arch, the water travels a longer path, allowing more time for heat exchange with the bottom and side walls of the energy storage chamber 21 before emptying, thereby improving the efficiency of energy extraction.

[0035] like Figures 1 to 3 As shown, each energy storage chamber 21 has multiple flow-damping plates 211 installed on its bottom wall, and the multiple flow-damping plates 211 are located between the water inlet 22 and the highest point of the arch.

[0036] Each of the aforementioned energy storage chambers 21 has three flow damping plates 211 installed on its bottom wall, or more than three.

[0037] The aforementioned flow-damping plate 211 can change the flow direction of water after it enters the energy storage chamber 21, slow down the flow velocity of the water, and increase the contact time between the water and the inner wall of the energy storage chamber 21, thereby improving the heat exchange efficiency during the heat storage or cold storage process. At the same time, the presence of the flow-damping plate 211 helps to prevent the water from directly impacting the top of the energy storage chamber 21, reducing the generation of turbulence and maintaining the temperature stability inside the energy storage chamber 21.

[0038] like Figures 1 to 3 As shown, the one closest to the inlet 22 among the multiple flow-regulating plates 211 is the highest flow-regulating plate 211, and the one closest to the highest flow-regulating plate 211 among the multiple flow-regulating plates 211 is the lowest flow-regulating plate 211, wherein the highest flow-regulating plate 211 is lower than the highest point of the arch.

[0039] The aforementioned arrangement of the highest and lowest flow-damping plates 211 creates an initial flow-damping zone. When water enters the energy storage chamber 21, it first contacts the highest flow-damping plate 211, slowing its flow velocity. Subsequently, during its descent, it contacts the lowest flow-damping plate 211, further slowing its flow velocity. This design ensures maximum heat exchange efficiency for the water in the initial stage of entering the energy storage chamber 21. Simultaneously, because the highest flow-damping plate 211 is lower than the highest point of the arch, it allows heat or cold energy to diffuse freely from the upper part of the energy storage chamber 21, avoiding localized energy concentration and waste.

[0040] like Figures 1 to 3 As shown, multiple flow buffers 211 within each energy storage chamber 21 divide the space between the inlet 22 and the highest point of the arch into multiple buffer pools 212, the tops of which are all connected.

[0041] The aforementioned buffer pool 212 design ensures segmented water flow within the energy storage chamber 21. The water in each buffer pool 212 undergoes a slow flow process, increasing the contact area and time between the water and the inner wall of the energy storage chamber 21, thereby improving heat exchange efficiency. The interconnected design at the top ensures vertical water flow within the energy storage chamber 21, promoting uniform temperature distribution, reducing the mixing of hot and cold water, and ensuring the accuracy of energy extraction.

[0042] like Figures 1 to 3 As shown, the volume of the buffer pool 212 closest to the inlet 22 among the multiple buffer pools 212 is smaller than the volumes of the other buffer pools 212.

[0043] The buffer pool 212 closest to the inlet 22 is relatively small, meaning that the water immediately experiences a turbulent zone upon entering the energy storage chamber 21, before flowing into the larger buffer pool 212 where the flow rate gradually decreases. This design utilizes the initial release of the water's kinetic energy to promote rapid heat dissipation, followed by deeper heat exchange in the slower-flowing buffer pool 212, thus improving the quality of energy storage.

[0044] like Figures 1 to 3 As shown, the distance between two adjacent flow-damping plates 211 on one bottom wall of two adjacent energy storage chambers 21 is equal everywhere. Along the width direction of the bottom wall of the energy storage chamber 21, the distance between two adjacent flow-damping plates 211 on the other bottom wall of two adjacent energy storage chambers 21 first decreases, then increases, and then decreases again.

[0045] The aforementioned design creates a dynamically changing flow channel. As water enters through inlet 22, it undergoes a flow environment change in the width direction, transitioning from a wider channel to a narrower channel and then back to a wider channel. This change promotes rapid mixing and heat diffusion of the water in the initial stage. Subsequently, the narrower channel increases the flow resistance of the water, slows down the flow velocity, and improves heat exchange efficiency. Finally, the wider channel design ensures that the water flows smoothly towards the upper part of the energy storage chamber 21, avoiding turbulence and maintaining temperature stratification within the energy storage chamber 21.

[0046] like Figure 2 and Figure 3 As shown, each energy storage chamber 21 has multiple guide channels 213 on its bottom wall. Each guide channel 213 extends along the length of the bottom wall of the energy storage chamber 21, and the multiple guide channels 213 are located between the highest point of the arch and the outlet 23.

[0047] Each energy storage chamber 21 has three flow channels 213 on its bottom wall, or more than three.

[0048] The aforementioned design of the flow guide trough 213 provides a clear flow path for water as it flows from the highest point of the energy storage chamber 21 to the outlet 23, reducing disorder in the water flow process and avoiding ineffective energy loss. Simultaneously, the flow guide trough 213 guides the water to flow along the length of the bottom wall of the energy storage chamber 21, increasing the contact time and area between the water and the bottom wall, thus improving heat exchange efficiency. Especially in scenarios requiring precise control of energy temperature, the design of the flow guide trough 213 significantly improves the accuracy of energy extraction.

[0049] like Figure 2 and Figure 3 As shown, the width of the guide channel 213 on one bottom wall of two adjacent energy storage chambers 21 is equal everywhere. Along the direction from the highest point of the arch to the outlet 23, the width of the guide channel 213 on the other bottom wall of the two adjacent energy storage chambers 21 gradually decreases.

[0050] The design of the guide channel 213 on the bottom wall of the energy storage chamber 21, with its width gradually decreasing from the highest point of the arch to the outlet 23, simulates the natural resistance changes in water flow. In the initial stage of water flow, due to abundant water energy, the larger channel width allows for rapid water flow. As the water energy is gradually consumed, the channel width gradually decreases, increasing the resistance to water flow and slowing the flow rate. This increases the heat exchange time between the water and the bottom wall of the energy storage chamber 21, improving energy utilization efficiency. Simultaneously, this design also helps to form stable temperature stratification, avoiding the mixing of hot and cold water and ensuring precise temperature matching requirements during energy extraction.

[0051] like Figure 2 and Figure 3 As shown, the width of the middle guide channel 213 among the plurality of guide channels 213 is smaller than the width of the other guide channels 213.

[0052] Because the width of the intermediate guide channel 213 is relatively small, the water body can easily form a relatively stable flow state when passing through it, reducing turbulence. Especially when the water body moves from a higher temperature layer to a lower temperature layer, it avoids ineffective energy loss and reduces turbulent mixing of hot and cold water bodies. When extracting energy, the narrower intermediate guide channel 213 can prolong the residence time of the water body near the target temperature layer, allowing the water body to absorb or release heat more fully and reach the required energy temperature.

[0053] The technical solution of an embodiment of the energy storage structure includes: an energy storage cavity 10, multiple partition structures 20, an inlet pipe 31, and an outlet pipe 32. Water is contained within the energy storage cavity 10. Multiple energy storage chambers 21 are spaced vertically within the energy storage cavity 10, each corresponding to its respective geological stratum. Each energy storage chamber 21 has an inlet 22 and an outlet 23 arranged horizontally opposite each other. The inlet pipe 31 is connected to the inlet 22 via an inlet valve 41, and the outlet pipe 32 is connected to the outlet 23 via an outlet valve 42. The bottom wall of each energy storage chamber 21 is arched. The distance between the highest point of the arch and the inlet 22 is less than the distance between the highest point of the arch and the outlet 23. Multiple flow-damping plates 211 are provided on the bottom wall of each energy storage chamber 21, located between the inlet 22 and the highest point of the arch. The highest flow-damping plate 211 is the one closest to the inlet 22 among the multiple flow-damping plates 211, and the lowest flow-damping plate 211 is the one closest to the highest flow-damping plate 211 among the multiple flow-damping plates 211. The highest flow-damping plate 211 is lower than the highest point of the arch. The multiple flow-damping plates 211 in each energy storage chamber 21 divide the space between the inlet 22 and the highest point of the arch into multiple buffer pools 212, and the tops of the multiple buffer pools 212 are all connected. The volume of the buffer pool 212 closest to the inlet 22 is smaller than the volumes of the other buffer pools 212. The distance between two adjacent flow-damping plates 211 on one bottom wall of two adjacent energy storage chambers 21 is always equal. Along the width direction of the bottom wall of the energy storage chamber 21, the distance between two adjacent flow-damping plates 211 on the other bottom wall of two adjacent energy storage chambers 21 first decreases, then increases, and then decreases again. Each energy storage chamber 21 has multiple guide channels 213 on its bottom wall. Each guide channel 213 extends along the length of the bottom wall of the energy storage chamber 21, and the multiple guide channels 213 are located between the highest point of the arch and the outlet 23. The width of the guide channels 213 on one bottom wall of two adjacent energy storage chambers 21 is equal everywhere. Along the direction from the highest point of the arch to the outlet 23, the width of the guide channels 213 on the other bottom wall of two adjacent energy storage chambers 21 gradually decreases.

[0054] The technical solution employs an arched bottom wall for each energy storage chamber 21.

[0055] The aforementioned arched bottom wall design not only significantly enhances the structural strength of the energy storage chamber 21 and reduces the static pressure of water acting on the bottom wall, thus lowering the risk of structural damage, but also utilizes the natural guiding function of the arched structure to promote an upward flow of water. This flow pattern facilitates a uniform temperature distribution within the energy storage chamber 21, particularly in the upper region, improving energy utilization efficiency and enhancing the system's adaptability and stability under different operating conditions.

[0056] A technical solution is proposed where the distance between the highest point of the arch and the inlet 22 is less than the distance between the highest point of the arch and the outlet 23.

[0057] The above design is based on the ingenious application of water flow characteristics. When water enters the energy storage chamber 21 from the inlet 22, the shorter distance between the highest point of the arch and the inlet 22 causes the water to naturally flow upwards, quickly filling the upper space of the energy storage chamber 21. At the outlet 23, the water needs to travel a longer path to be discharged, which increases the time and opportunity for heat exchange between the water and the bottom and side walls of the energy storage chamber 21, improves the extraction efficiency of thermal or cold energy, ensures the effective utilization of energy between different temperature layers, and reduces the mixing loss of hot and cold energy.

[0058] The technical solution involves installing multiple flow-damping plates 211 on the bottom wall of each energy storage chamber 21, with the multiple flow-damping plates 211 located between the water inlet 22 and the highest point of the arch.

[0059] The aforementioned multiple flow-damping plates 211 effectively alter the flow path of water entering the energy storage chamber 21, slowing down the water's velocity and increasing the contact time and frequency between the water and the inner wall of the energy storage chamber 21, thus significantly improving heat exchange efficiency. Simultaneously, the flow-damping plates 211 also prevent water from directly impacting the top of the energy storage chamber 21, avoiding turbulence formation, maintaining the stability of the internal temperature of the energy storage chamber 21, reducing the mixing of hot and cold fluids, and ensuring the accuracy of energy storage and extraction.

[0060] The highest flow buffer 211 is the one closest to the inlet 22 among multiple flow buffers 211, and the lowest flow buffer 211 is the one closest to the highest flow buffer 211 among multiple flow buffers 211. The highest flow buffer 211 is lower than the highest arch in the technical solution.

[0061] The layered arrangement of the highest and lowest flow-damping plates 211 creates a slow-flow initiation zone. When water enters the energy storage chamber 21, it first contacts the highest flow-damping plate 211, initially slowing its flow velocity. Subsequently, during its descent, it contacts the lowest flow-damping plate 211 again, further slowing its flow velocity. This design ensures sufficient heat exchange for the water in the initial stage of entering the energy storage chamber 21. Because the highest flow-damping plate 211 is lower than the highest point of the arch, it allows heat or cold energy to naturally diffuse to the upper part of the energy storage chamber 21, avoiding local energy accumulation and waste, and improving the uniformity of energy storage and the efficiency of energy extraction.

[0062] The technical solution involves using multiple flow-damping plates 211 within each energy storage chamber 21 to divide the space between the inlet 22 and the highest point of the arch into multiple buffer pools 212, with the tops of the multiple buffer pools 212 being interconnected.

[0063] The aforementioned flow-damping plate 211 divides the energy storage chamber 21 into multiple buffer pools 212, enabling precise control of the segmented water flow. The water flow velocity in each buffer pool 212 is slowed, increasing the contact time with the inner wall of the energy storage chamber 21, promoting a more uniform temperature distribution and reducing the mixing of hot and cold water. The top-connected design ensures free vertical flow of water within the energy storage chamber 21, enhancing the stability of the temperature gradient, improving the accuracy of energy extraction, reducing unnecessary energy exchange, and enhancing overall energy storage efficiency.

[0064] A technical solution is to apply a buffer pool 212 that is closest to the inlet 22 among multiple buffer pools 212, where the volume is smaller than the volumes of the other buffer pools 212.

[0065] In the aforementioned design, the buffer pool 212 closest to the inlet 22 is relatively small, causing the water to immediately experience a turbulent zone upon entering the energy storage chamber 21, before entering the larger buffer pool 212 where the flow velocity gradually decreases. This design strategy utilizes the initial kinetic energy of the water to promote rapid heat diffusion, followed by deeper heat exchange in the low-velocity buffer pool 212, improving the quality of energy storage and reducing ineffective energy loss during storage.

[0066] The technical solution involves applying a method where the distance between two adjacent flow-damping plates 211 on one bottom wall of two adjacent energy storage chambers 21 is equal everywhere, and the distance between two adjacent flow-damping plates 211 on the other bottom wall of two adjacent energy storage chambers 21 first decreases, then increases, and then decreases again along the width direction of the bottom wall of the energy storage chamber 21.

[0067] The aforementioned design creates a dynamically changing flow channel. As the water enters the energy storage chamber 21, it experiences a flow environment that transitions from wider to narrower and then back to wider along its width. This process promotes rapid mixing and heat diffusion of the water in the initial stage. The narrower channel increases flow resistance, slows the water flow velocity, prolongs heat exchange time, and improves efficiency. Finally, the wider channel design ensures smooth water flow towards the upper part of the energy storage chamber 21, avoiding energy loss caused by turbulence, maintaining the stability of temperature stratification, and ensuring temperature accuracy during energy extraction.

[0068] The technical solution is to provide multiple guide channels 213 on the bottom wall of each energy storage chamber 21, with each guide channel 213 extending along the length of the bottom wall of the energy storage chamber 21, and the multiple guide channels 213 located between the highest point of the arch and the outlet 23.

[0069] The design of the aforementioned guide channel 213 structurally defines the path of water flow from the highest point of the energy storage chamber 21 to the outlet 23, reducing flow disorder and avoiding ineffective energy loss during transfer. The guide channel 213 guides the water to flow stably along the length of the bottom wall of the energy storage chamber 21, increasing the contact time and area between the water and the bottom wall, optimizing the heat exchange process. Especially when precise temperature control is required, it significantly improves the accuracy of energy extraction and enhances the system's energy management capabilities.

[0070] The technical solution involves using a guide channel 213 on one bottom wall of two adjacent energy storage chambers 21, where the width of the channel is equal everywhere, and the width of the guide channel 213 on the other bottom wall of the two adjacent energy storage chambers 21 gradually decreases along the direction from the highest point of the arch to the outlet 23.

[0071] The width of the guide channel 213 on the bottom wall of the energy storage chamber 21 gradually decreases from the highest point of the arch to the outlet 23, simulating the natural resistance changes of water flow. In the initial stage of water flow, the larger channel width allows the water to flow rapidly along the predetermined path; as the flow energy is consumed, the channel width gradually decreases, increasing flow resistance, slowing the flow velocity, and prolonging the time for heat exchange between the water and the bottom wall of the energy storage chamber 21, thus improving heat exchange efficiency. Simultaneously, this gradually narrowing design helps to form stable temperature stratification, reducing the mixing of hot and cold water, ensuring precise temperature matching during energy extraction, improving the system's economy and application effect, and demonstrating precise control and innovative thinking in energy management.

[0072] In the description of this invention, it should be understood that "a plurality of" means two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, horizontal," and "top, bottom" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing the invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0073] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0074] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An energy storage structure, characterized in that, include: An energy storage chamber (10) is provided with water. Multiple partition structures (20) are spaced apart in the energy storage cavity (10) in the vertical direction to divide the energy storage cavity (10) into multiple energy storage chambers (21). The multiple energy storage chambers (21) correspond to their respective strata. Each energy storage chamber (21) is provided with an inlet (22) and an outlet (23) in the horizontal direction. The water inlet pipe (31) and the water outlet pipe (32) are connected to the water inlet (22) through the water inlet valve (41) and the water outlet pipe (32) through the water outlet valve (42) and the water outlet (23).

2. The energy storage structure according to claim 1, characterized in that, The bottom wall of each of the energy storage chambers (21) is arched.

3. The energy storage structure according to claim 2, characterized in that, The distance between the highest point of the arch and the inlet (22) is less than the distance between the highest point of the arch and the outlet (23).

4. The energy storage structure according to claim 3, characterized in that, Each of the energy storage chambers (21) has a plurality of flow-damping plates (211) on its bottom wall, and the plurality of flow-damping plates (211) are located between the water inlet (22) and the highest point of the arch.

5. The energy storage structure according to claim 4, characterized in that, The one of the plurality of flow-damping plates (211) closest to the inlet (22) is the highest flow-damping plate (211), and the one of the plurality of flow-damping plates (211) closest to the highest flow-damping plate (211) is the lowest flow-damping plate (211), wherein the highest flow-damping plate (211) is lower than the highest point of the arch.

6. The energy storage structure according to claim 4, characterized in that, The multiple flow-damping plates (211) within each of the energy storage chambers (21) divide the space between the inlet (22) and the highest point of the arch into multiple buffer pools (212), the tops of which are interconnected.

7. The energy storage structure according to claim 6, characterized in that, The volume of the buffer pool (212) closest to the inlet (22) among the plurality of buffer pools (212) is smaller than the volume of the other buffer pools (212).

8. The energy storage structure according to claim 4, characterized in that, The distance between two adjacent flow buffers (211) on one bottom wall of two adjacent energy storage chambers (21) is equal everywhere. Along the width direction of the bottom wall of the energy storage chamber (21), the distance between two adjacent flow buffers (211) on the other bottom wall of two adjacent energy storage chambers (21) first decreases, then increases, and then decreases again.

9. The energy storage structure according to claim 2, characterized in that, Each of the energy storage chambers (21) has a plurality of flow guide channels (213) on its bottom wall. Each flow guide channel (213) extends along the length of the bottom wall of the energy storage chamber (21), and the plurality of flow guide channels (213) are located between the highest point of the arch and the water outlet (23).

10. The energy storage structure according to claim 9, characterized in that, The width of the guide groove (213) on one bottom wall of two adjacent energy storage chambers (21) is equal everywhere, and the width of the guide groove (213) on the other bottom wall of two adjacent energy storage chambers (21) gradually decreases along the direction from the highest point of the arch to the outlet (23).

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