Phase change heat storage panel with pressure overload protection

Abstract

The utility model relates to the field of phase change heat storage plate discloses a kind of phase change heat storage plates of pressure overload protection, including board, the left and right ends of the board are all set with moving groove, the front and rear ends of the board are all set with recess, the inner wall of the recess is set with slot, the slot is communicated with moving groove, moving plate is arranged in the moving groove, the outer wall of the moving plate is fixedly connected with two insert blocks one, the middle part of the moving plate is threadedly connected with lead screw, the front end of the lead screw is provided with rotating assembly.In the utility model, by screwing lead screw into the middle part of moving plate and placing in the moving groove between board, cooperating with the insertion of insert block two into slot, smearing adhesive completes board preliminary connection, subsequently rotating rotating wheel drives lead screw, makes moving plate push insert block one into slot, so as to be able to connect two boards, effectively avoid the separation of board due to the aging and falling of adhesive, greatly enhance the durability and reliability of connecting structure.

Description

Technical Field

[0001] This utility model relates to the field of phase change thermal energy storage plates, and in particular to a phase change thermal energy storage plate with pressure overload protection. Background Technology

[0002] Against the backdrop of ever-increasing energy demand and the pursuit of high efficiency and energy conservation, phase change thermal energy storage technology, with its advantages such as high heat storage density and temperature stability, has been widely used in building heating and cooling, industrial waste heat recovery, and solar energy utilization. As a core component, the phase change thermal energy storage plate contains phase change materials. When a phase change occurs, the temperature of the material remains almost constant while it can absorb (or release) a large amount of heat.

[0003] In practical applications, existing phase change thermal energy storage plates mainly achieve heat absorption and release through the solid-liquid phase change of phase change materials. The installation of existing thermal energy storage plates usually involves connecting two thermal energy storage plates together with adhesives. These adhesives have a certain degree of thermal conductivity. However, after long-term use, the adhesives may age and fall off, leading to the separation of the two thermal energy storage plates. In order to address this technical problem, this application proposes a phase change thermal energy storage plate with pressure overload protection. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a phase change thermal storage plate with pressure overload protection. This is achieved by screwing a lead screw into the center of a movable plate and placing it in a moving groove between the plates. A second insert block is then inserted into the slot, and adhesive is applied to complete the initial connection of the plates. Subsequently, rotating the rotating wheel drives the lead screw, causing the movable plate to push the first insert block into the slot, thus connecting the two plates. This effectively prevents plate separation due to adhesive aging and detachment, greatly enhancing the durability and reliability of the connection structure. Furthermore, the inclusion of a filling layer provides a buffer space for the volume changes of the phase change material, ensuring that its morphological changes are unrestricted during heat absorption and release, maintaining stable system operation. Simultaneously, the filling layer improves the thermal conductivity of the entire thermal storage system, accelerating heat transfer efficiency, allowing heat to be absorbed, stored, or released more quickly, effectively improving the working efficiency of the thermal storage system.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A phase change thermal energy storage plate with pressure overload protection includes a plate, with movable grooves at both the left and right ends and recesses at both the front and rear ends. The inner wall of the recess has a slot, which is connected to the movable groove. A movable plate is disposed in the movable groove. Two inserts are fixedly connected to the outer wall of the movable plate. A lead screw is threadedly connected to the middle of the movable plate, and a rotating component is disposed at the front end of the lead screw.

[0006] Furthermore, the rotating assembly includes a fixed plate rotatably connected to the front end of the lead screw, a circular groove is provided in the middle of the fixed plate, a rotating wheel is provided in the circular groove, and the rotating wheel is fixedly connected to the front end of the lead screw.

[0007] Furthermore, the plate includes a shell, a cavity is provided inside the shell, a filling layer is provided on the inner wall of the cavity, and a phase change material is provided on the inner wall of the filling layer.

[0008] Furthermore, the outer shell is made of polyethylene, which has good chemical stability, corrosion resistance and insulation. The filling layer is made of expanded graphite, which has a rich pore structure and good thermal conductivity. The phase change material is paraffin wax, which has the advantages of high latent heat of phase change, good chemical stability, no supercooling and phase separation.

[0009] Furthermore, a through groove adapted to the lead screw is provided on the adjacent side of the moving groove and the recess.

[0010] Furthermore, two insert blocks are fixedly connected to the rear end of the fixing plate.

[0011] Furthermore, the dimensions of both the first and second inserts are adapted to the dimensions of the slot.

[0012] This utility model has the following beneficial effects: 1. In this utility model, by screwing the lead screw into the middle of the moving plate and placing it in the moving groove between the plates, and then inserting the second insert into the slot and applying adhesive, the plates are initially connected. Then, the rotating wheel drives the lead screw, which pushes the first insert into the slot, thereby connecting the two plates. This effectively avoids the separation of the plates due to the aging and falling off of the adhesive, and greatly enhances the durability and reliability of the connection structure.

[0013] 2. In this utility model, by setting a filling layer, a buffer space can be provided for the volume change of the phase change material, ensuring that its morphological changes are not restricted during the heat absorption and release process, maintaining the stable operation of the system. At the same time, the filling layer can improve the thermal conductivity of the entire thermal storage system, accelerate the heat transfer efficiency, and enable heat to be absorbed, stored or released more quickly, effectively improving the working efficiency of the thermal storage system. Attached Figure Description

[0014] Figure 1 This is a perspective view of a phase change thermal energy storage plate with pressure overload protection proposed in this utility model. Figure 2 This is a schematic diagram of the moving groove of a phase change thermal storage plate for pressure overload protection proposed in this utility model. Figure 3 This is a schematic diagram of the structure of the fixing plate of a phase change thermal energy storage plate with pressure overload protection proposed in this utility model. Figure 4 This is a schematic diagram of the filling layer of a phase change thermal storage plate with pressure overload protection proposed in this utility model.

[0015] Legend: 1. Sheet metal; 2. Moving groove; 3. Slot; 4. Groove; 5. Fixing plate; 6. Rotating wheel; 7. Lead screw; 8. Moving plate; 9. Insert block one; 10. Insert block two; 11. Circular groove; 12. Outer shell; 13. Filling layer; 14. Phase change material. Detailed Implementation

[0016] 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.

[0017] Reference Figure 1-3 This utility model provides an embodiment of a phase change thermal energy storage plate with pressure overload protection, comprising a plate 1, with movable grooves 2 at both ends of the plate 1, allowing a movable plate 8 to move within the movable grooves 2, and grooves 4 at both ends of the plate 1, the dimensions of which are adapted to the dimensions of a fixed plate 5. By placing the fixed plate 5 into the groove 4, a second insert 10 can be inserted into a slot 3. The inner wall of the groove 4 has a slot 3 connected to the movable groove 2. By inserting the second insert 10 into one end of the slot 3 and then inserting the first insert 9 into the other end of the slot 3, two plates 1 can be connected together. A movable plate is provided in the movable groove 2. 8. Two insert blocks 9 are fixedly connected to the outer wall of the movable plate 8. Inserting the insert blocks 9 into the slot 3 allows the two plates 1 to be connected by the movable plate 8. A screw rod 7 is threadedly connected to the middle of the movable plate 8. Rotating the screw rod 7 moves the movable plate 8 on its outer wall. The front end of the screw rod 7 is rotatably connected to a fixed plate 5. A circular groove 11 is provided in the middle of the fixed plate 5. The diameter of the circular groove 11 is larger than the diameter of the rotating wheel 6. The rotating wheel 6 can rotate in the circular groove 11. The rotating wheel 6 is provided in the circular groove 11. Multiple anti-slip grooves are provided on the outer wall of the rotating wheel 6. The rotating wheel 6 is fixedly connected to the front end of the screw rod 7. Rotating the rotating wheel 6 can rotate the screw rod 7.

[0018] Reference Figure 2-4The plate 1 includes a shell 12 with a cavity inside. The cavity is used to store the phase change material 14 and the filling layer 13. The volume of the phase change material 14 in its solid state is smaller than the volume of the cavity. The inner wall of the cavity is provided with the filling layer 13. During the phase change process of the phase change material 14, when it changes from solid to liquid, the phase change material 14 will seep into the filling layer 13, and when it changes from liquid to solid, the phase change material 14 will flow out of the filling layer 13. The inner wall of the filling layer 13 is provided with the phase change material 14. The shell 12 is made of polyethylene, which has good chemical stability, corrosion resistance, and insulation. The filling layer 13 is made of expanded graphite, which has a rich porous structure and good thermal conductivity. The phase change material 14 is paraffin wax, which has advantages such as high latent heat of phase change, good chemical stability, and no supercooling or phase separation. A through groove adapted to the lead screw 7 is provided on the adjacent side of the movable groove 2 and the recess 4. The through groove provides space for the lead screw 7 to be placed, and the lead screw 7 can rotate within the through groove when the two plates 1 are spliced ​​together. Two insert blocks 10 are fixedly connected to the rear end of the fixing plate 5. The insert blocks 10 can be inserted into the slot 3, thereby connecting the two plates 1 through the fixing plate 5. The dimensions of the insert blocks 1 and 10 are adapted to the dimensions of the slot 3.

[0019] Working principle: First, screw 7 is screwed into the middle of the moving plate 8. Then, screw 7 is placed in the moving groove 2 between the two plates 1. Next, insert block 2 10 is inserted into the slot 3 from one side of the groove 4. Then, adhesive is applied to the adjacent sides of the two plates 1 to connect them together. Then, by rotating the rotating wheel 6, screw 7 can be rotated. The rotation of screw 7 causes the moving plate 8 to move, and the moving plate 8 carries insert block 1 9 into the slot 3 to improve the stability of the connection between the two plates 1 and prevent the adhesive from falling off after long-term use, which would cause the two plates 1 to separate. By setting the filling layer 13, it can not only adapt to the volume change of the phase change material 14, but also improve the thermal conductivity of the entire thermal storage system and accelerate the heat transfer rate.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A phase change thermal energy storage plate with pressure overload protection, characterized in that, The plate (1) includes a movable groove (2) at both the left and right ends, a groove (4) at both the front and rear ends, a slot (3) on the inner wall of the groove (4), the slot (3) being connected to the movable groove (2), a movable plate (8) being provided in the movable groove (2), two insert blocks (9) being fixedly connected to the outer wall of the movable plate (8), a screw rod (7) being threadedly connected to the middle of the movable plate (8), and a rotating component being provided at the front end of the screw rod (7).

2. The phase change thermal energy storage plate with pressure overload protection according to claim 1, characterized in that: The rotating assembly includes a fixed plate (5) rotatably connected to the front end of the lead screw (7). A circular groove (11) is provided in the middle of the fixed plate (5), and a rotating wheel (6) is provided in the circular groove (11). The rotating wheel (6) is fixedly connected to the front end of the lead screw (7).

3. A phase change thermal energy storage plate with pressure overload protection according to claim 1, characterized in that: The plate (1) includes a shell (12), a cavity is provided inside the shell (12), a filling layer (13) is provided on the inner wall of the cavity, and a phase change material (14) is provided on the inner wall of the filling layer (13).

4. A phase change thermal energy storage plate with pressure overload protection according to claim 3, characterized in that: The outer shell (12) is made of polyethylene, which has good chemical stability, corrosion resistance and insulation. The filling layer (13) is made of expanded graphite, which has rich pore structure and good thermal conductivity. The phase change material (14) is paraffin wax.

5. A phase change thermal energy storage plate with pressure overload protection according to claim 1, characterized in that: The movable groove (2) and the groove (4) are provided with a through groove adapted to the lead screw (7) on the adjacent side.

6. A phase change thermal energy storage plate with pressure overload protection according to claim 2, characterized in that: The rear end of the fixed plate (5) is fixedly connected to two plug blocks (10).

7. A phase change thermal energy storage plate with pressure overload protection according to claim 1, characterized in that: The dimensions of the first insert (9) and the second insert (10) are both adapted to the dimensions of the slot (3).

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