Heat storage system based on thermochemical energy storage material

Abstract

The utility model discloses a thermal storage system based on thermochemical energy storage materials, which relates to the field of thermal storage equipment and comprises a thermal storage shell, a flat plate is fixedly mounted on one side of the thermal storage shell, an air pump is fixedly mounted on the upper surface of the flat plate, and an air outlet pipe of the air pump penetrates through the inner wall of one side, close to the air pump, of the thermal storage shell. A supporting spring is fixedly installed on the inner wall of the bottom of the heat storage shell, a storage net box is fixedly installed on the top of the supporting spring, and a wave-shaped heat insulation plate is fixedly installed on the inner wall of the bottom of the heat storage shell. And the contact area between heat and the thermochemical heat storage material is increased, the heat absorption and energy storage effect is better, the thermochemical heat storage material in the swinging storage net box can be turned over, the contact area between the heat and the thermochemical heat storage material can be further increased, and the heat storage efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of heat storage equipment, in particular to a heat storage system based on thermochemical energy storage materials. Background Art

[0002] The working process of thermal storage materials consists of two phases: first, heat storage, which involves storing excess power during peak periods, industrial waste heat, or solar energy; and second, heat release, which occurs when the material is used for heating and other purposes. By cyclically implementing these heat storage and release phases, thermal storage materials can address the temporal and spatial disparities of thermal energy, achieving efficient energy utilization and energy conservation.

[0003] The patent titled: A flow guide structure for a solid heat storage system and a solid heat storage system (patent application number: 202010818273.2) discloses a solid heat storage system that evenly distributes the airflow to multiple heat storage groups through a diversion mechanism, and then stores heat through the solid heat-absorbing material in the heat storage. When this heat storage system stores heat, the heat flows parallel to the heat storage material, resulting in only heat in contact with the material being absorbed by the material, and the contact area between the heat and the heat storage material is small, resulting in a slow heat adsorption efficiency. Therefore, it is necessary to propose a heat storage system based on thermochemical energy storage materials to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a heat storage system based on thermochemical energy storage materials to solve the problem that the contact area between heat and heat storage materials is small and the efficiency of heat adsorption is slow.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a heat storage system based on thermochemical energy storage materials, comprising a heat storage shell, a flat plate fixedly mounted on one side of the heat storage shell, an air pump fixedly mounted on the upper surface of the flat plate, an air outlet pipe of the air pump passing through an inner wall of the heat storage shell on one side close to the air pump, a support spring fixedly mounted on the bottom inner wall of the heat storage shell, a storage net box fixedly mounted on the top of the support spring, a corrugated heat insulation board fixedly mounted on the bottom inner wall of the heat storage shell, and special-shaped heat insulation boards fixedly mounted on the four side inner walls of the heat storage shell.

[0006] Preferably, a circular hole is provided on the lower surface of the corrugated heat insulation board, and the circular hole passes through the upper surface of the corrugated heat insulation board, and the bottom end of the support spring is fixedly installed inside the circular hole.

[0007] Preferably, the end of the air outlet pipe of the air pump is fixedly connected with a high-temperature resistant hose, and the high-temperature resistant hose is arranged in cooperation with the storage net box.

[0008] Preferably, a guide cavity is provided in the heat storage shell, and the guide cavity is located between the special-shaped heat insulation board and the storage net box.

[0009] Preferably, a filling pipe is fixedly connected to the top of the storage net box, the bottom end of the filling pipe passes through the top inner wall of the storage net box, the top end of the filling pipe passes through the upper surface of the heat storage shell, and a manual valve is provided at the top end of the filling pipe.

[0010] Preferably, the injection pipe includes an upper straight pipe, a connecting hose and a lower straight pipe, the two ends of the connecting hose are fixedly connected to the upper straight pipe and the lower straight pipe respectively, the upper straight pipe is fixedly connected to the top inner wall of the heat storage shell, and the lower straight pipe is fixedly connected to the top inner wall of the storage net box.

[0011] Technical effects and advantages of this utility model:

[0012] 1. During operation, when the air pump discharges heat into the heat storage shell, part of the heat directly contacts the thermochemical heat storage material, undergoing a chemical reaction to absorb heat. When the remaining heat impacts the corrugated insulation board and the special-shaped insulation board, the heat will rebound and flow into the storage net box and contact the thermochemical heat storage material inside. This increases the contact area between the heat and the thermochemical heat storage material, achieving a better heat absorption and energy storage effect.

[0013] 2. During operation, due to the floating nature of the airflow, the heat discharged by the air pump will drive the high-temperature resistant hose to swing, causing the heat flow to blow in different directions. When blowing in the direction of the corrugated insulation board and the special-shaped insulation board, it can accelerate the rebound speed, speed up the contact with the thermochemical heat storage material, and improve the heat absorption effect;

[0014] 3. During operation, since the heat flow blows toward the storage net box from different directions, the storage net box will swing with the cooperation of the supporting spring, which makes the thermochemical heat storage material inside the storage net box flip, which can further increase the contact area between heat and the thermochemical heat storage material, further improve the heat absorption and energy storage effect, and have high heat storage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the heat storage system based on thermochemical energy storage materials in the utility model.

[0016] Figure 2 This is a cross-sectional view from the first perspective of the heat storage system based on thermochemical energy storage materials of the present invention.

[0017] Figure 3 This is a cross-sectional view from the second perspective of the heat storage system based on thermochemical energy storage materials of the present invention.

[0018] In the figure: 1. Heat storage shell; 2. Flat plate; 3. Air pump; 4. Support spring; 5. Storage net box; 6. Corrugated insulation board; 7. Special-shaped insulation board; 8. High-temperature resistant hose; 9. Diversion chamber; 10. Injection pipe; 11. Manual valve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Since sensible heat storage materials rely on temperature changes of the heat storage materials to store heat, the heat release process cannot maintain a constant temperature and the heat storage density is low, resulting in a bulky heat storage device and low heat storage efficiency. In addition, the temperature difference with the surrounding environment will cause heat loss, and heat cannot be stored for a long time, making it unsuitable for long-term, large-capacity heat storage.

[0021] Thermochemical heat storage materials mostly use the reversible chemical reaction of metal hydrides and amides to store heat. The thermal reaction rate is fast in the presence of catalysts, high temperatures and far from equilibrium.

[0022] The utility model provides Figure 1-Figure 3 The heat storage system based on thermochemical energy storage materials shown includes a heat storage shell 1, a flat plate 2 is fixedly mounted on one side of the heat storage shell 1, an air pump 3 is fixedly mounted on the upper surface of the flat plate 2, and an outlet pipe of the air pump 3 passes through the inner wall of the heat storage shell 1 on one side close to the air pump 3. The air pump 3 adopts a dual-purpose pump for extraction and discharge, which is mainly used for heat extraction and release. This type of technology belongs to the existing technology and will not be described in detail.

[0023] A storage net box 5 is provided inside the heat storage shell 1, and an injection pipe 10 is fixedly connected to the top of the storage net box 5. The bottom end of the injection pipe 10 passes through the top inner wall of the storage net box 5, and the top end of the injection pipe 10 passes through the upper surface of the heat storage shell 1, and a manual valve 11 is provided on the top end of the injection pipe 10. During operation, the required thermochemical heat storage material and catalyst are added to the storage net box 5 through the injection pipe 10. When the air pump 3 injects heat into the heat storage shell 1, the thermochemical heat storage material reacts quickly in the presence of the catalyst, high temperature and far from equilibrium, can quickly absorb and store heat, and has good heat storage performance.

[0024] In order to solve the problem that the contact area between heat and heat storage material is small and the efficiency of heat adsorption is slow, the utility model is fixedly installed with a support spring 4 on the bottom inner wall of the heat storage shell 1, and the top of the support spring 4 is fixedly connected to the lower surface of the storage net box 5. The bottom inner wall of the heat storage shell 1 is fixedly installed with a corrugated heat insulation board 6, and the four side inner walls of the heat storage shell 1 are fixedly installed with special-shaped heat insulation boards 7. A guide cavity 9 is provided in the heat storage shell 1, and the guide cavity 9 is located between the special-shaped heat insulation board 7 and the storage net box 5. During operation, when the air pump 3 discharges heat into the heat storage shell 1, part of the heat is directly discharged. It comes into contact with the thermochemical heat storage material, undergoes a chemical reaction and absorbs heat, and the other heat inside the guide cavity 9 will come into contact with the corrugated heat insulation board 6 and the special-shaped heat insulation board 7. The corrugated heat insulation board 6 and the special-shaped heat insulation board 7 can isolate heat and prevent heat loss. Since the surfaces of the corrugated heat insulation board 6 and the special-shaped heat insulation board 7 are uneven, when heat impacts the corrugated heat insulation board 6 and the special-shaped heat insulation board 7, the heat will rebound and flow to the inside of the storage net box 5 and come into contact with the thermochemical heat storage material inside it, thereby increasing the contact area between the heat and the thermochemical heat storage material and achieving a better heat absorption and energy storage effect.

[0025] Furthermore, the utility model has a high-temperature resistant hose 8 fixedly connected to the end of the air outlet pipe of the air pump 3, and the high-temperature resistant hose 8 is arranged in conjunction with the storage net box 5. During operation, due to the floating nature of the airflow, the heat discharged by the air pump 3 will drive the high-temperature resistant hose 8 to swing, so that the heat flow will blow in different directions. When blowing in the direction of the corrugated insulation board 6 and the special-shaped insulation board 7, the rebound speed can be accelerated, the contact with the thermochemical heat storage material can be accelerated, and the heat absorption effect can be improved. At the same time, since the heat flow blows from different directions to the storage net box 5, with the cooperation of the support spring 4, the storage net box 5 will swing, which makes the thermochemical heat storage material inside the storage net box 5 flip over, which can further increase the contact area between the heat and the thermochemical heat storage material, further improve the heat absorption and energy storage effect, and have high heat storage efficiency.

[0026] A circular hole is provided on the lower surface of the corrugated heat insulation board 6 , and the circular hole passes through the upper surface of the corrugated heat insulation board 6 , and the bottom end of the support spring 4 is fixedly installed inside the circular hole.

[0027] The injection pipe 10 includes an upper straight pipe, a connecting hose and a lower straight pipe. The two ends of the connecting hose are fixedly connected to the upper straight pipe and the lower straight pipe respectively. The upper straight pipe is fixedly connected to the top inner wall of the heat storage shell 1, and the lower straight pipe is fixedly connected to the top inner wall of the storage net box 5. The setting of the connecting hose on the injection pipe 10 can maintain the connection state with the heat storage shell 1 when the storage net box 5 swings, ensuring that the storage net box 5 swings within a certain range and will not collide with the special-shaped insulation board 7, thereby having high safety.

Claims

1. A heat storage system based on thermochemical energy storage materials, comprising a heat storage housing (1), characterized in that: A flat plate (2) is fixedly mounted on one side of the heat storage shell (1), an air pump (3) is fixedly mounted on the upper surface of the flat plate (2), an air outlet pipe of the air pump (3) passes through the inner wall of the heat storage shell (1) on one side close to the air pump (3), a support spring (4) is fixedly mounted on the bottom inner wall of the heat storage shell (1), a storage net box (5) is fixedly mounted on the top of the support spring (4), a corrugated heat insulation board (6) is fixedly mounted on the bottom inner wall of the heat storage shell (1), and special-shaped heat insulation boards (7) are fixedly mounted on the four side inner walls of the heat storage shell (1).

2. The thermal storage system based on thermochemical energy storage materials according to claim 1, characterized in that: A circular hole is provided on the lower surface of the corrugated heat insulation board (6), and the circular hole passes through the upper surface of the corrugated heat insulation board (6), and the bottom end of the support spring (4) is fixedly installed inside the circular hole.

3. The thermal storage system based on thermochemical energy storage materials according to claim 1, characterized in that: The end of the air outlet pipe of the air pump (3) is fixedly connected to a high-temperature resistant hose (8), and the high-temperature resistant hose (8) is arranged in conjunction with the storage net box (5).

4. The thermal storage system based on thermochemical energy storage materials according to claim 1, characterized in that: A flow guide cavity (9) is provided in the heat storage housing (1), and the flow guide cavity (9) is located between the special-shaped heat insulation board (7) and the storage net box (5).

5. The thermal storage system based on thermochemical energy storage materials according to claim 1, characterized in that: The top of the storage net box (5) is fixedly connected to an injection pipe (10), the bottom end of the injection pipe (10) passes through the top inner wall of the storage net box (5), the top end of the injection pipe (10) passes through the upper surface of the heat storage shell (1), and a manual valve (11) is provided at the top end of the injection pipe (10).

6. The thermal storage system based on thermochemical energy storage materials according to claim 5, characterized in that: The injection pipe (10) comprises an upper straight pipe, a connecting hose and a lower straight pipe, the two ends of the connecting hose being fixedly connected to the upper straight pipe and the lower straight pipe respectively, the upper straight pipe being fixedly connected to the top inner wall of the heat storage shell (1), and the lower straight pipe being fixedly connected to the top inner wall of the storage net box (5).

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