Heat storage assembly

Abstract

The heat storage assembly comprises a plurality of heat storage parts and a plurality of heating parts, the heat storage parts and the heating parts are alternately arranged at intervals in the first direction, each heat storage part comprises heat storage units adjacently arranged in the second direction and an air channel used for containing a heat exchange medium, the first direction is perpendicular to the second direction, and the heating parts can heat the heat storage units. And the heat storage unit is used for exchanging heat with the heat exchange medium in the air duct. The heat exchange medium is arranged in the air channel to separate the heat exchange medium from the heat storage unit, so that the heat exchange medium does not make direct contact with the heat storage unit, the heat storage unit can be prevented from being oxidized, the upper limit temperature of the heat storage assembly is increased, and meanwhile the size of the heat storage assembly can be reduced. In addition, the air channel isolates the heat exchange medium, the flowing speed of the heat exchange medium in the air channel can be increased, and therefore the overall heat transfer speed of the heat storage assembly is increased.

Description

Technical Field

[0001] This disclosure relates to the field of thermal energy storage, and more specifically, to a thermal energy storage component. Background Technology

[0002] In existing thermal storage methods, electric heating tubes or a separation of heating and storage are generally used. While these methods can solve the conductivity problem of the thermal storage material and achieve electric heating, the use of electric heating tubes not only limits the increase in thermal storage temperature and the lifespan of the equipment, but also results in higher costs for the electric heating tubes. The separation of heating and storage increases the size and complexity of the device due to the separate structure, and the use of liquid heat exchange media in this method also limits the increase in thermal storage temperature and heat transfer rate. Summary of the Invention

[0003] The purpose of this disclosure is to provide a thermal storage component to address the problems of low thermal storage temperature and low heat transfer rate in existing thermal storage components.

[0004] To achieve the above objectives, this disclosure provides a heat storage component, including a plurality of heat storage sections and a plurality of heating sections, wherein the heat storage sections and the heating sections are alternately and spaced apart along a first direction, wherein the heat storage section includes heat storage units arranged adjacent to each other along a second direction and an air duct for containing a heat exchange medium, the first direction being perpendicular to the second direction, the heating section being capable of heating the heat storage units, and the heat storage units being used to exchange heat with the heat exchange medium in the air duct.

[0005] Optionally, the heat storage unit includes multiple heat storage units and multiple air ducts, and the heat storage units and the air ducts are alternately arranged along the second direction.

[0006] Optionally, the extension direction of the air duct is the same as the extension direction of the thermal storage unit.

[0007] Optionally, two measuring points are spaced apart on the thermal storage unit, and a test resistor can be selectively connected between the two measuring points.

[0008] Optionally, the two measuring points are respectively set at both ends of the thermal storage unit along a third direction, which is perpendicular to both the first direction and the second direction.

[0009] Optionally, the thermal storage unit is made of carbon-based material.

[0010] Optionally, the air duct is made of metal.

[0011] Optionally, the heating element includes an insulating plate and a heating wire for connecting to an external power source. The heating wire is disposed on one side of the insulating plate along the first direction and is disposed opposite to the heat storage element.

[0012] Optionally, the heating wire is distributed in a serpentine pattern on the insulating plate.

[0013] Optionally, the insulating plate is a ceramic plate.

[0014] Through the above technical solutions, the separation of the heat storage section and the heating section effectively improves the overall safety of the thermal storage component and reduces the possibility of component damage caused by excessively short distances between them. A heat exchange medium is installed in the air duct to isolate the heat exchange medium from the thermal storage unit, preventing direct contact between the heat exchange medium and the thermal storage unit. This prevents oxidation of the thermal storage unit, increases the upper limit temperature of the thermal storage component, and also reduces the volume of the thermal storage component. Furthermore, the air duct's isolation of the heat exchange medium also increases its flow velocity within the air duct, thereby improving the overall heat transfer rate of the thermal storage component.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a heat storage component according to one embodiment of the present disclosure.

[0017] Figure 2 This is a schematic diagram of a heat storage unit in a heat storage assembly according to one embodiment of the present disclosure.

[0018] Explanation of reference numerals in the attached figures 1-Heat storage unit; 11-Measuring point; 111-Test resistor; 2-Air duct; 3-Insulation board; 4-Heating wire. Detailed Implementation

[0019] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0020] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" are used in relation to the outline of the corresponding components. Furthermore, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements.

[0021] According to one embodiment of this disclosure, such as Figure 1 and Figure 2 As shown, a heat storage component is provided, including multiple heat storage sections and multiple heating sections. The heat storage sections and heating sections are alternately and spaced apart along a first direction. Each heat storage section includes heat storage units 1 arranged adjacent to each other along a second direction and an air duct 2 for containing a heat exchange medium. The first direction is perpendicular to the second direction. The heating sections are capable of heating the heat storage units 1, which are used to exchange heat with the heat exchange medium in the air duct 2. Here, the heat exchange medium can be a gas or a liquid. Specifically, in the case where the heat exchange medium is a gas, it can be nitrogen, air, carbon dioxide, or water vapor, and this disclosure does not limit this.

[0022] Through the above technical solution, the separation of the heat storage section and the heating section effectively improves the overall safety of the thermal storage component and reduces the possibility of component damage caused by excessively short distance between them. A heat exchange medium is installed in the air duct 2 to isolate the heat exchange medium from the thermal storage unit 1, preventing direct contact between the heat exchange medium and the thermal storage unit 1. This prevents oxidation of the thermal storage unit 1, increases the upper limit temperature of the thermal storage component, and also reduces the volume of the thermal storage component. Furthermore, the isolation of the heat exchange medium by the air duct 2 increases the flow velocity of the heat exchange medium within the air duct 2, thereby improving the overall heat transfer rate of the thermal storage component.

[0023] It should be noted that the interval between the heating section and the heat storage section can be determined based on the voltage and heating temperature of the heating section. Specifically, the interval can be set between 30mm and 700mm. In the scheme described below where the heating section includes an insulating plate 3 and a heating wire 4, the interval between the heating section and the heat storage section can achieve spatial insulation. When the interval is between 50mm and 500mm, the heat storage effect of the heat storage section can be further improved while ensuring that the heating section does not leak electricity. In addition, the extension direction of the air duct 2 and the extension direction of the heat storage unit 1 can also be the same. This can maximize the contact area between the air duct 2 and the heat storage unit 1, thereby improving the heat exchange effect between the heat storage unit 1 and the heat exchange medium in the air duct 2.

[0024] Furthermore, such as Figure 1 As shown, the heat storage unit may include multiple heat storage units 1 and multiple air ducts 2, with the heat storage units 1 and air ducts 2 alternately arranged along a second direction, so that the air ducts 2 and heat storage units 1 can be evenly distributed, further improving the heat exchange effect between the heat exchange medium in the heat storage units 1 and the air ducts 2. Regarding the size ratio of the heat storage unit 1 to the air duct 2, taking the first direction as the thickness direction and the second direction as the width direction as an example, the thickness of both can be the same, and the width ratio can be between 1:1 and 7:1. Specifically, the heat exchange effect is better when the width ratio is between 2:1 and 5:1.

[0025] According to one embodiment of this disclosure, the thermal storage unit 1 can be made of a carbon-based material with a carbon content ranging from 80% to 100%. Carbon-based materials are lightweight and have good compressive strength, while also exhibiting good heat transfer performance, which can extend the thermal storage temperature range of the thermal storage unit 1. Its thermal conductivity can range from 30 W / mK to 100 W / mK, and its density can range from 1.5 g / cm³. 3 ~2.0g / cm 3 The compressive strength can be between 10MPa and 30MPa. The air duct 2 can be made of metal, specifically, heat-resistant steel or other metals that are resistant to high temperatures, oxidation, and have a low coefficient of thermal expansion.

[0026] According to one embodiment of this disclosure, such as Figure 1 and Figure 2 As shown, two measuring points 11 can be set at intervals on the thermal storage unit 1. A test resistor 111 can be selectively connected between the two measuring points 11. The data collected after connecting the test resistor 111 can help the staff to judge the service life of the thermal storage unit 1, so as to facilitate timely replacement and maintenance of the thermal storage unit 1, thereby ensuring the thermal storage effect of the thermal storage component.

[0027] Furthermore, such as Figure 1 and Figure 2 As shown, two measuring points 11 are respectively set at both ends of the thermal storage unit 1 along a third direction, which is perpendicular to both the first and second directions. Here, the third direction can be the length direction of the thermal storage unit 1. Setting the measuring points 11 at both ends of the length direction allows the current to pass through the thermal storage unit 1 along the length direction, extending the current flow path within the thermal storage unit 1, thus better reflecting the overall condition of the thermal storage unit 1 and better determining its lifespan. It should be noted that the third direction can also be the height direction, in which case the thermal storage unit 1 and the air duct 2 can be arranged perpendicularly, facilitating rapid replacement of the thermal storage unit 1 and the air duct 2 by personnel.

[0028] According to one embodiment of this disclosure, such as Figure 1 and Figure 2As shown, the heating element may include an insulating plate 3 and a heating wire 4 for connecting to an external power source. The heating wire 4 can be disposed on one side of the insulating plate 3 along the first direction and opposite to the heat storage element. The insulating plate 3 provides space for the heating wire 4, assists in fixing the heating wire 4, and also improves the insulation effect, preventing the charged heating wire 4 from puncturing the heat storage unit 1 and ensuring operational safety. In addition, compared with heating tubes, the heating wire 4 can achieve higher heating temperatures, can withstand higher voltages, has a longer service life, and lower procurement costs. When the heat storage component stores heat, the heating wire 4 is energized and heats up. The heat reaches the heat storage unit 1 through radiation, and the heat storage unit 1 heats up and stores heat. When the heat storage component releases heat, a cold heat exchange medium flows into one end of the air duct 2. The heat exchange medium exchanges heat with the heat storage unit 1 through the air duct 2, and the heated heat exchange medium flows out from the other end, realizing heat release.

[0029] Here, as Figure 1 As shown, the heating wires 4 can be distributed in a serpentine pattern on the insulating plate 3. This not only increases the area of ​​the portion opposite to the heat storage unit 1, but also prevents short circuits caused by the heating wires 4 crossing each other. Since the maximum heating temperature of the heating wires 4 is much higher than the temperature that the insulating plate 3 can withstand, the better the heat resistance of the insulating plate 3, the higher the temperature that the heating wires 4 can be heated to. Ceramic material has good high-temperature resistance and oxidation resistance. Therefore, the insulating plate 3 can be a ceramic plate, which can ensure its insulation and prevent damage when the heating wires 4 are heated to a high temperature, thereby increasing the maximum heating temperature of the heating wires 4 and improving the heating effect.

[0030] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0031] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0032] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A thermal storage component, characterized in that, It includes multiple heat storage sections and multiple heating sections, which are alternately and spaced apart along a first direction. Each heat storage section includes a heat storage unit arranged adjacent to each other along a second direction and an air duct for containing a heat exchange medium. The first direction is perpendicular to the second direction. The heating section can heat the heat storage unit, which is used to exchange heat with the heat exchange medium in the air duct.

2. The thermal storage component according to claim 1, characterized in that, The heat storage unit includes multiple heat storage units and multiple air ducts, and the heat storage units and the air ducts are alternately arranged along the second direction.

3. The thermal storage component according to claim 1, characterized in that, The extension direction of the air duct is the same as the extension direction of the thermal storage unit.

4. The thermal storage component according to claim 1, characterized in that, The thermal storage unit has two measuring points spaced apart, and a test resistor can be selectively connected between the two measuring points.

5. The thermal storage component according to claim 4, characterized in that, The two measuring points are respectively set at both ends of the thermal storage unit along a third direction, which is perpendicular to both the first direction and the second direction.

6. The thermal storage component according to claim 1, characterized in that, The thermal storage unit is made of carbon-based material.

7. The thermal storage component according to claim 1, characterized in that, The air duct is made of metal.

8. The thermal storage component according to any one of claims 1-7, characterized in that, The heating element includes an insulating plate and a heating wire for connecting to an external power source. The heating wire is disposed on one side of the insulating plate along the first direction and is disposed opposite to the heat storage element.

9. The thermal storage component according to claim 8, characterized in that, The heating wires are distributed in a serpentine pattern on the insulating plate.

10. The thermal storage component according to claim 8, characterized in that, The insulating plate is a ceramic plate.

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