Solid-state energy storage and heat storage equipment

Abstract

The utility model discloses a kind of solid-state energy storage and heat storage equipment, it is related to energy storage and heat storage technical field, including the energy storage and heat storage main body of horizontal arrangement, energy storage and heat storage main body includes: solid-state heat storage object, solid-state heat storage object is formed using heat storage material pouring;Heating element, heating element is set in solid-state heat storage object, for heating to solid-state heat storage object;Heat exchange mechanism, heat exchange mechanism includes heat exchange pipeline, import main pipe and export main pipe, import main pipe is set to the bottom side of solid-state heat storage object, and import main pipe is connected with medium inlet pipe, for into heat exchange medium;Export main pipe is set to the top side of solid-state heat storage object, and multiple heat exchange pipelines are provided in solid-state heat storage object, and the bottom of all heat exchange pipelines are communicated with import main pipe, top and export main pipe are communicated;Export main pipe is also connected with medium outlet pipe, for discharging after heating heat exchange medium.The utility model solid-state energy storage and heat storage equipment can reduce heat storage cost, and be suitable for use.

Description

Technical Field

[0001] This utility model relates to the field of energy storage and thermal energy storage technology, and in particular to a solid-state energy storage and thermal energy storage equipment. Background Technology

[0002] Currently, excess electricity is easily generated during off-peak hours (such as at night). Storing this energy can prevent waste. Moreover, electricity prices during off-peak hours are significantly lower than during peak hours (such as peak daytime industrial and commercial electricity consumption). Charging during off-peak hours and discharging or using the electricity during peak hours can directly reduce electricity costs. Therefore, utilizing off-peak electricity storage devices to store energy during periods of low electricity demand and releasing it during peak hours has become a current trend in electricity utilization.

[0003] Existing off-peak electricity storage methods mainly include lithium battery energy storage and pumped hydro storage. Among them, lithium battery energy storage has a high cost, and lithium batteries will also degrade with the increase of usage time, affecting the energy storage effect; while pumped hydro storage has high requirements for the site and cannot be widely used.

[0004] Therefore, a solid-state energy storage and thermal storage device is provided to solve the above-mentioned problems existing in the prior art. Utility Model Content

[0005] The purpose of this invention is to provide a solid-state energy storage and thermal storage device to solve the problems existing in the prior art, reduce costs, and facilitate widespread use.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a solid-state energy storage and thermal storage device, including a horizontally arranged energy storage and thermal storage body, the energy storage and thermal storage body comprising:

[0008] Solid thermal storage material, wherein the solid thermal storage material is cast from thermal storage material;

[0009] A heating element is disposed within the solid heat storage material and is used to heat the solid heat storage material.

[0010] A heat exchange mechanism includes heat exchange pipes, an inlet main pipe, and an outlet main pipe. The inlet main pipe is located on one side of the bottom of the solid heat storage material and is connected to a medium inlet pipe for introducing the heat exchange medium. The outlet main pipe is located on one side of the top of the solid heat storage material. Multiple heat exchange pipes are arranged inside the solid heat storage material, and the bottom of all heat exchange pipes is connected to the inlet main pipe, and the top of all heat exchange pipes is connected to the outlet main pipe. The outlet main pipe is also connected to a medium outlet pipe for discharging the heated heat exchange medium.

[0011] Preferably, the solid heat storage material is provided with a heating channel, and the heating element is disposed in the heating channel;

[0012] The heating channels are evenly distributed in multiple ways, and each heating channel contains a heating element.

[0013] Preferably, the heating element is a resistance heating element; wherein the heating element can be connected to mains power to utilize off-peak electricity for heating, and / or the heating element is also connected to a wind power generation device and / or a solar power generation device.

[0014] Preferably, the heating element is connected to a three-phase power supply in a star configuration, or the heating element is connected to a delta configuration.

[0015] Preferably, the device further includes a temperature sensor disposed within the solid heat storage material to detect the temperature of the solid heat storage material; wherein the temperature sensor is also signal-connected to an intelligent controller, the intelligent controller is signal-connected to the heating element, and the temperature sensor is capable of transmitting the detected temperature data to the intelligent controller, which controls the switching on and off of the heating element based on the temperature data.

[0016] Preferably, the outer wall of the heat exchange pipeline is coated with a high-temperature release agent.

[0017] Preferably, the heat exchange medium is pure water, the inlet main pipe is connected to a water storage tank through the medium inlet pipe for introducing pure water, and a water supply pump is also provided on the medium inlet pipe;

[0018] The main inlet pipe is also equipped with a drain outlet, which is connected to the water storage tank via a drain pipe. A drain pump is also installed on the drain pipe.

[0019] Alternatively, the heat exchange medium is gas, and the inlet main pipe is connected to a gas supply device through the medium inlet pipe for introducing gas.

[0020] Preferably, the thermal storage material includes basalt particles, quartz sand, kaolinite particles, magnesium oxide particles, and a binder, wherein the weight ratio of the basalt particles, the quartz sand, the kaolinite particles, the magnesium oxide particles, and the binder is 70-80% : 1-4% : 3-4% : 8-10% : 10-12%.

[0021] Preferably, it also includes an outer shell, which is wrapped around the outside of the solid heat storage material, and the outside of the outer shell is also wrapped with an insulation layer.

[0022] Preferably, the energy storage and thermal storage main body is provided in multiple sets;

[0023] Each group of energy storage and thermal energy storage entities comprises multiple energy storage and thermal energy storage entities stacked sequentially from bottom to top.

[0024] The present invention achieves the following technical advantages over the prior art:

[0025] This utility model discloses a solid-state energy storage and thermal energy storage equipment, mainly comprising a horizontally arranged energy storage and thermal energy storage body. The energy storage and thermal energy storage body includes: a solid thermal energy storage material, which is cast from thermal storage material; a heating element, which is disposed within the solid thermal energy storage material for heating the solid thermal energy storage material; and a heat exchange mechanism, which includes heat exchange pipelines, an inlet main pipe, and an outlet main pipe. The inlet main pipe is disposed on one side of the bottom of the solid thermal energy storage material and is connected to a medium inlet pipe for introducing the heat exchange medium; the outlet main pipe is disposed on one side of the top of the solid thermal energy storage material. Multiple heat exchange pipelines are disposed within the solid thermal energy storage material, and the bottom of all heat exchange pipelines is connected to the inlet main pipe, and the top of all heat exchange pipelines is connected to the outlet main pipe; the outlet main pipe is also connected to a medium outlet pipe for discharging the heated heat exchange medium.

[0026] In this invention, a heating element heats a solid thermal storage material, storing energy within it. A heat exchange medium is then introduced into the inlet main pipe via a medium inlet pipe, absorbing the heat energy from the solid thermal storage material within the heat exchange pipeline. The heat-absorbed medium then enters the outlet main pipe and is discharged through the medium outlet pipe for utilization. This invention utilizes a solid thermal storage material cast from thermal storage material for energy storage and heat preservation. Compared to traditional energy storage batteries, this effectively reduces costs and extends service life. Compared to traditional pumped hydro storage, it has no special site requirements and is suitable for widespread application. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a three-dimensional structural diagram of the energy storage and thermal storage body in an embodiment of this utility model;

[0029] Figure 2 This is a schematic diagram showing the arrangement of the heating element in an embodiment of this utility model;

[0030] Figure 3 This is a schematic diagram showing that the solid heat storage material in this embodiment of the invention has snap-fit ​​protrusions and snap-fit ​​grooves on both sides.

[0031] In the diagram: 100-energy storage and thermal storage main body, 1-solid thermal storage material, 2-outlet main pipe, 3-inlet main pipe, 4-lifting hole, 5-water supply pump, 6-medium inlet pipe, 7-medium outlet pipe, 8-drain pipe, 9-heating channel, 10-temperature sensor, 11-heating element, 12-heat exchange pipeline, 13-clamping protrusion, 14-clamping groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] The purpose of this invention is to provide a solid-state energy storage and thermal storage device to solve the problems existing in the prior art, reduce costs, and facilitate widespread use.

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Example 1

[0036] like Figures 1-2 As shown, this embodiment provides a solid-state energy storage and thermal energy storage device, mainly including a horizontally arranged energy storage and thermal energy storage body 100, the energy storage and thermal energy storage body 100 including:

[0037] Solid thermal storage 1, which is a single unit made of thermal storage material and is used to store thermal energy;

[0038] A heating element 11 is disposed inside the solid heat storage material 1 and is used to heat the solid heat storage material 1;

[0039] The heat exchange mechanism includes heat exchange pipes 12, an inlet main pipe 3, and an outlet main pipe 2. The inlet main pipe 3 is located on one side of the bottom of the solid heat storage material 1 and is connected to a medium inlet pipe 6 for introducing the heat exchange medium. The outlet main pipe 2 is located on one side of the top of the solid heat storage material 1. Multiple heat exchange pipes 12 are provided inside the solid heat storage material 1, and the bottom of all heat exchange pipes 12 is connected to the inlet main pipe 3, and the top of all heat exchange pipes 12 is connected to the outlet main pipe 2. The outlet main pipe 2 is also connected to a medium outlet pipe 7 for discharging the heated heat exchange medium.

[0040] In this embodiment, off-peak electricity or green electricity is used to heat the solid thermal storage material 1 through the heating element 11, which can store energy in the solid thermal storage material 1. Then, the heat exchange medium is added into the inlet main pipe 3 through the medium inlet pipe 6, and then enters the heat exchange pipeline 12 to absorb the heat energy of the solid thermal storage material 1. After absorbing heat, the heat exchange medium enters the outlet main pipe 2 and is discharged through the medium outlet pipe 7 for utilization. In this embodiment, the solid thermal storage material 1 cast from thermal storage material is used for energy storage and heat storage. Compared with traditional energy storage batteries, it can effectively reduce costs and extend service life. Compared with traditional pumped hydro storage, it has no special requirements for the site and is easy to promote and apply.

[0041] In this embodiment, a heating channel 9 is provided inside the solid heat storage material 1, and a heating element 11 is disposed inside the heating channel 9. Multiple heating channels 9 are evenly distributed, and each heating channel 9 penetrates the solid heat storage material 1 horizontally. Each heating channel 9 contains a heating element 11. Through the multiple evenly distributed heating channels 9 and the heating elements 11 within them, different locations of the solid heat storage material 1 can be heated, thereby achieving comprehensive heating of the solid heat storage material 1 and improving the heating effect.

[0042] In a preferred embodiment, the multiple heating channels 9 can be arranged in an array, for example, in a rectangular array with a spacing of 20 mm between adjacent heating channels 9, or in a circular array, or in other arrangements, such as the multiple heating channels 9 being arranged in a crisscross pattern, or in a surrounding or spiral pattern.

[0043] In this embodiment, the heating element 11 is preferably a resistance heating element, such as a resistance heating wire, which can extend into the heating channel 9 to heat the solid heat storage material 1. The resistance heating wire is preferably a spiral heating wire to improve the heating effect. The heating element 11 can be connected to mains power to utilize off-peak electricity for heating, reducing electricity costs. Alternatively, the heating element 11 can be directly connected to a wind power generation device or a solar power generation device without needing an inverter, utilizing wind or solar power for power generation. It should be noted that the wind power generation device and the solar power generation device are mature existing technologies in the art, and will not be described in detail in this embodiment.

[0044] In this embodiment, the heating element 11 is preferably connected in a three-phase star configuration. With this configuration, when the three-phase load is perfectly symmetrical (all heating elements 11 have the same resistance), the neutral current is zero, ensuring a balanced three-phase current and preventing excess current from returning to the grid. When using off-peak electricity for heating, the balanced load prevents three-phase imbalance in the grid, avoiding additional line losses, reduced transformer efficiency, and adverse effects on other electrical equipment caused by imbalance, thus meeting the requirements of the power grid company. When using wind power, the three-phase wind turbine itself outputs three-phase electricity. Connecting it to a balanced three-phase load can make the three-phase wind turbine run more smoothly, reducing vibration and torque fluctuations, and improving power generation efficiency and equipment lifespan. Solar power generation devices also benefit from balanced loads.

[0045] Moreover, the standard industrial three-phase voltage (line voltage) is 380V. When a three-phase power supply is connected in a star configuration, the actual voltage that each heating element 11 bears is the phase voltage of 220V (380V / √3≈220V). This allows the rated voltage of a single heating element 11 to be designed to the common 220V level, making it easy to manufacture, technologically mature, and cost-effective.

[0046] Alternatively, the heating element 11 can be connected in other ways as needed, such as a delta connection.

[0047] In this embodiment, a temperature sensor 10 is also included. The temperature sensor 10 is disposed within the solid-state heat storage material 1 and is used to detect the temperature of the solid-state heat storage material 1. The temperature sensor 10 is also signal-connected to an intelligent controller, which is signal-connected to the heating element 11. The temperature sensor 10 can transmit the detected temperature data to the intelligent controller, and the intelligent controller controls the switching on and off of the heating element 11 based on the temperature data. Specifically, when the temperature sensor 10 detects that the temperature of the solid-state heat storage material 1 reaches a preset temperature, the intelligent controller controls the heating element 11 to turn off, stopping heating to prevent excessively high heating temperatures from causing the solid-state heat storage material 1 to crack or the heating element 11 to be damaged. The preset temperature can be 500-600℃.

[0048] The temperature sensors 10 can be arranged in multiple ways from bottom to top to detect the temperature at different locations.

[0049] In this embodiment, the outer wall of the heat exchange pipe 12 is also coated with a high-temperature release agent. When the solid heat storage material 1 is heated by the heating element 11, the solid heat storage material 1 and the heat exchange pipe 12 inside it expand due to heat. Since the expansion coefficients of the solid heat storage material 1 and the heat exchange pipe 12 are different, the heat exchange pipe 12 will move relative to the solid heat storage material 1. Therefore, coating the outer wall of the heat exchange pipe 12 with a high-temperature release agent reduces the coefficient of friction between the heat exchange pipe 12 and the solid heat storage material 1, facilitating relative sliding and preventing damage to the heat exchange pipe 12 or rupture of the solid heat storage material 1 due to a large coefficient of friction. The heat exchange pipe 12 can be made of metal, such as stainless steel, and the high-temperature release agent can be a powder release agent such as graphite powder or mica powder, or other release agents.

[0050] In this embodiment, the heat exchange pipe 12 is preferably an S-shaped curved pipe, which is formed by connecting multiple S-shaped pipes from bottom to top to increase the travel of the heat exchange medium within the solid heat storage material 1 and improve the heat exchange effect. Furthermore, the heat exchange pipe 12 can also be a finned pipe, that is, heat exchange fins are also sleeved on the outside of the heat exchange pipe 12 (on the outside of each straight segment when it is an S-shaped curved pipe) to increase the heat exchange area and improve the heat exchange effect. The heat exchange fins are only sleeved on the outside of the heat exchange pipe 12 and are not fixed to the heat exchange pipe 12, or only at both ends are fixed to the heat exchange pipe 12, so that when the heat exchange pipe 12 expands, it can detach from the heat exchange fins so that it can slide relative to the solid heat storage material 1.

[0051] In this embodiment, the heat exchange medium can be pure water. The inlet pipe 3 is connected to a water storage tank through the medium inlet pipe 6 for introducing pure water. The medium inlet pipe 6 is also equipped with a water supply pump 5 to provide power for the flow of pure water. The water supply pump 5 is preferably a booster pump. The outlet pipe 2 is connected to the medium outlet pipe 7 for discharging the water vapor generated by heating the pure water for subsequent use. For example, it can be used in factories that require water vapor, such as wineries.

[0052] In this embodiment, the main inlet pipe 3 is also provided with a drain outlet, which is connected to the water storage tank through a drain pipe 8. A drain pump is also provided on the drain pipe 8. When the output steam meets the usage requirements and no more steam is needed, the water inlet is stopped, the drain outlet is opened, and the high-temperature water is discharged into the water storage tank. This allows for the recovery and utilization of the waste heat of the high-temperature water and prevents the high-temperature water in the heat exchange pipeline 12 from continuing to absorb heat and vaporize, which would cause the pressure in the heat exchange pipeline 12 to be too high and lead to the damage of the heat exchange pipeline 12 and the solid heat storage material 1. Alternatively, the water can be directly discharged to the outside through the drain outlet.

[0053] Alternatively, the heat exchange medium can also be a gas. In this case, the inlet pipe 3 is connected to a gas supply device through the medium inlet pipe 6 for introducing gas; the outlet pipe 2 is connected to the medium outlet pipe 7 for discharging high-temperature gas. In this case, it can be used as a hot air blower. The gas supply device can be selected according to specific working needs. For example, it can be an air pump, and the introduced gas can be air or other gases.

[0054] In this embodiment, a control valve is also provided on the medium outlet pipe 7 to facilitate control of the switch. Preferably, the control valve is an electrically controlled valve, which can be electrically controlled to prevent burns when manually switching on and off. Furthermore, electrically controlled valves can also be provided on the medium inlet pipe 6 and the drain pipe 8. The electrically controlled valve is signal-connected to the intelligent controller and the switch is controlled by the intelligent controller.

[0055] In this embodiment, the intelligent controller can be selected as needed, for example, it can be a PLC controller, and the intelligent controller can be connected to a control panel, which can be operated by the staff.

[0056] Furthermore, it should be noted that the main inlet pipe 3 may be provided with two medium inlet pipes 6, which are used to introduce pure water and gas respectively. Alternatively, only one medium inlet pipe 6 may be provided, which is connected to the water storage tank or gas supply device to introduce pure water or gas as the heat exchange medium.

[0057] In this embodiment, the thermal storage material may include basalt particles, quartz sand, kaolinite particles, magnesium oxide particles, and a binder. The preferred weight ratio of the basalt particles, quartz sand, kaolinite particles, magnesium oxide particles, and the binder is 70-80%: 1-4%: 3-4%: 8-10%: 10-12%. The binder may be selected according to specific working requirements and is preferably refractory cement. Among them, basalt particles account for the largest proportion of the main material (70-80%). They have high specific heat capacity and thermal stability, and can maintain structural stability for a long time at high temperatures. They are excellent heat storage carriers and have low cost. Magnesium oxide particles (8-10%) also have high melting point and heat capacity, which further enhances the overall heat storage capacity. Quartz sand (1-4%) and kaolinite particles (3-4%) can moderately improve the thermal conductivity of the material, promote the uniform transfer of heat inside the heat storage body, and avoid local overheating or excessive thermal resistance. The binder (10-12%, such as refractory cement) ensures that the material has sufficient mechanical strength and structural integrity after casting and molding, and prevents cracking or pulverization at high temperatures.

[0058] In this embodiment, basalt particles, quartz sand, kaolinite particles, magnesium oxide particles, and refractory cement are used as the main raw materials. These materials have high specific heat capacity and low cost, which can reduce the overall cost while ensuring the heat storage effect. Moreover, the above-mentioned heat storage materials have high melting points and can withstand high heating temperatures to heat the heat exchange medium in the heat exchange pipeline 12. In this embodiment, the heat storage material is cast into a solid heat storage object 1, and the heat exchange pipeline 12 is cast into the solid heat storage object 1, which can ensure sufficient contact and improve the heat exchange effect.

[0059] Alternatively, other materials with high specific heat capacity and low cost can be selected as heat storage materials as needed.

[0060] In this embodiment, an outer shell is also included. The outer shell is wrapped around the outside of the solid heat storage material 1. The outer shell can protect the solid heat storage material 1, and even if the solid heat storage material 1 breaks, the presence of the outer shell can prevent the solid heat storage material 1 from scattering, so that it can still work normally. Moreover, the outer shell can also be used as a template during casting.

[0061] Furthermore, the outer side of the outer shell is also wrapped with an insulation layer to keep it warm and reduce heat loss. The insulation layer can be selected as needed, for example, ceramic fiber cotton or rock wool board.

[0062] In this embodiment, multiple sets of the energy storage and thermal storage body 100 can be provided. By providing multiple sets of the energy storage and thermal storage body 100, the energy storage and thermal storage capacity can be improved; specifically, as shown... Figure 3 As shown, the solid thermal storage material 1 can be provided with snap-fit ​​protrusions 13 and snap-fit ​​grooves 14 on its left and right sides, respectively. Multiple sets of the energy storage and thermal storage bodies 100 can be arranged side by side from left to right. The snap-fit ​​protrusions 13 on the solid thermal storage material 1 of the energy storage and thermal storage body 100 can be inserted into the snap-fit ​​grooves 14 on the solid thermal storage material 1 of the adjacent energy storage and thermal storage body 100 to achieve fixation. Multiple sets of the energy storage and thermal storage bodies 100 can be stacked on a base plate. Figure 3 The image shows a single energy storage and thermal storage unit 100 placed on a base plate. When multiple sets of the energy storage and thermal storage units 100 are placed, a base plate with a larger area can be installed.

[0063] In this embodiment, any group of energy storage and thermal storage bodies 100 includes multiple energy storage and thermal storage bodies 100 stacked sequentially from bottom to top, saving floor space.

[0064] In this embodiment, the energy storage and thermal storage body 100 is also provided with lifting holes 4 on both sides to facilitate lifting.

[0065] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A solid-state energy storage and thermal storage device, characterized in that: The energy storage and thermal energy storage unit (100) is horizontally arranged, and the energy storage and thermal energy storage unit (100) includes: Solid thermal storage material (1), wherein the solid thermal storage material (1) is cast from thermal storage material; A heating element (11) is disposed inside the solid heat storage material (1) and is used to heat the solid heat storage material (1); The heat exchange mechanism includes heat exchange pipes (12), an inlet pipe (3), and an outlet pipe (2). The inlet pipe (3) is located on the bottom side of the solid heat storage material (1), and the inlet pipe (3) is connected to a medium inlet pipe (6) for introducing the heat exchange medium. The outlet pipe (2) is located on the top side of the solid heat storage material (1). The solid heat storage material (1) is provided with multiple heat exchange pipes (12), and the bottom of all the heat exchange pipes (12) is connected to the inlet pipe (3), and the top of all the heat exchange pipes (12) is connected to the outlet pipe (2). The outlet pipe (2) is also connected to a medium outlet pipe (7) for discharging the heated heat exchange medium.

2. The solid-state energy storage and thermal storage equipment according to claim 1, characterized in that: The solid heat storage material (1) is provided with a heating channel (9), and the heating element (11) is provided in the heating channel (9); The heating channels (9) are evenly distributed in multiple ways, and each heating channel (9) is provided with a heating element (11).

3. The solid-state energy storage and thermal storage equipment according to claim 2, characterized in that: The heating element (11) is a resistance heating element; wherein the heating element (11) can be connected to mains power and use off-peak electricity for heating, and / or the heating element (11) is also connected to a wind power generation device and / or a solar power generation device.

4. The solid-state energy storage and thermal storage equipment according to claim 2 or 3, characterized in that: The heating element (11) is connected to the power supply in a three-phase star connection or in a delta connection.

5. The solid-state energy storage and thermal storage equipment according to claim 4, characterized in that: It also includes a temperature sensor (10), which is disposed inside the solid heat storage material (1) and is used to detect the temperature of the solid heat storage material (1); wherein, the temperature sensor (10) is also connected to a smart controller, the smart controller is connected to the heating element (11), the temperature sensor (10) can transmit the detected temperature data to the smart controller, and the smart controller controls the switching of the heating element (11) according to the temperature data.

6. The solid-state energy storage and thermal storage equipment according to claim 1, characterized in that: The outer wall of the heat exchange pipeline (12) is coated with a high-temperature release agent.

7. The solid-state energy storage and thermal storage equipment according to claim 1, characterized in that: The heat exchange medium is pure water. The inlet pipe (3) is connected to a water storage tank through the medium inlet pipe (6) for passing pure water in. A water supply pump (5) is also provided on the medium inlet pipe (6). The main inlet pipe (3) is also provided with a drain outlet, which is connected to the water storage tank through a drain pipe (8). A drain pump is also provided on the drain pipe (8). Alternatively, the heat exchange medium is gas, and the inlet main pipe (3) is connected to a gas supply device through the medium inlet pipe (6) for introducing gas.

8. The solid-state energy storage and thermal storage equipment according to claim 1, characterized in that: It also includes an outer shell, which is wrapped around the outside of the solid heat storage material (1), and the outside of the outer shell is also wrapped with an insulation layer.

9. The solid-state energy storage and thermal storage equipment according to claim 1, characterized in that: The energy storage and thermal storage body (100) is provided with multiple sets; Each of the energy storage and thermal storage bodies (100) includes multiple energy storage and thermal storage bodies (100) stacked sequentially from bottom to top.

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