Lithium battery plant heat recovery energy-saving ventilation device

Abstract

The utility model discloses a lithium battery plant heat recovery energy-saving ventilation device which comprises a heat recovery cabin, a heat converter arranged in the heat recovery cabin, an air inlet cabin and an air outlet cabin, the air inlet cabin and the air outlet cabin are arranged above the heat recovery cabin and communicated with the heat recovery cabin, and a first partition plate, a second partition plate and a third partition plate are arranged in the heat recovery cabin. The heat converter comprises a plurality of heat pipes penetrating through the second partition plate and the third partition plate, a plurality of metal plates are connected to the heat pipes in a sleeved mode, the metal plates at least comprise one fixed metal plate and two movable metal plates, the two movable metal plates are located on the two sides of one fixed metal plate, and the two movable metal plates are located on the two sides of the other fixed metal plate. The two movable metal plates and the fixed metal plate are arranged, the distance between the metal plates can be dynamically adjusted, when the heat conversion efficiency needs to be improved, the movable metal plates are close to the fixed metal plate, and the contact area between the heat pipe and air is increased.

Description

Technical Field

[0001] This utility model relates to the field of heat recovery energy-saving ventilation technology, specifically a heat recovery energy-saving ventilation device for lithium battery factories. Background Technology

[0002] With the rapid development of the lithium battery industry, energy consumption in lithium battery production plants has become increasingly prominent, especially due to the high demands for ventilation and temperature control, leading to substantial energy consumption. To reduce energy consumption and improve energy efficiency, heat recovery technology is widely used in the ventilation systems of lithium battery plants. Heat recovery devices recover waste heat from the plant and use it to preheat fresh air or heat other areas, thereby reducing energy waste and achieving energy-saving goals.

[0003] First, traditional heat exchangers typically employ a fixed structure, making it impossible to dynamically adjust heat conversion efficiency according to actual needs. For example, when rapid ventilation is required, airflow resistance is low, but heat conversion efficiency is low; conversely, when high-efficiency heat conversion is needed, airflow resistance increases, leading to a decrease in ventilation efficiency. This contradiction limits the overall performance of heat recovery devices.

[0004] Secondly, during operation, dust and impurities easily accumulate on the surface of heat pipes and metal plates of existing heat exchangers, affecting heat exchange efficiency. Although some devices are equipped with filters, the filters can only intercept some particles, and the particles on the filters need to be cleaned manually after they accumulate, which increases maintenance costs and workload. In addition, existing heat exchangers have complex structures, are inconvenient to maintain, and are difficult to automate. Utility Model Content

[0005] Purpose of the utility model: To provide a heat recovery energy-saving ventilation device for lithium battery factories to solve the above-mentioned problems existing in the prior art.

[0006] Technical solution: A heat recovery energy-saving ventilation device for lithium battery factories, comprising:

[0007] The heat recovery chamber includes a heat exchanger disposed within the heat recovery chamber, an air inlet chamber and an air outlet chamber disposed above and connected to the heat recovery chamber, and the heat recovery chamber is provided with a first partition, a second partition, and a third partition.

[0008] The heat exchanger includes multiple heat pipes penetrating the second and third partitions. Multiple metal plates are sleeved on each of the heat pipes. Among the multiple metal plates, there is at least one fixed metal plate and two movable metal plates. The two movable metal plates are located on both sides of the fixed metal plate. A connecting rod is provided in the middle section of the fixed metal plate. The middle section of the connecting rod is movably connected to the fixed metal plate. Both ends of the connecting rod are provided with U-shaped holes. The U-shaped holes are connected to fixed rods provided on the two movable metal plates. A pull rod is sleeved on the fixed rod. The pull rod extends out of the heat recovery chamber and a propulsion motor installed on the heat recovery chamber is provided at the extension.

[0009] In a further embodiment, a fan is provided at both the air inlet chamber and the air inlet. The air inlet chamber is connected to the air outlet chamber via a heat pipe, and the air inlet is connected to the air outlet via a metal plate.

[0010] In a further embodiment, filters are provided at both ends of the heat pipe and at the second and third partitions, and a dust box is provided between the filters and the first partition.

[0011] In a further embodiment, the heat pipe is a through hole, the metal plate has a cavity inside, the fixed metal plate is fixedly connected to the heat pipe, and the movable metal plate is slidably connected to the heat pipe.

[0012] In a further embodiment, the air inlet passes through the first partition and is close to the heat exchanger, the air inlet extends a distance beyond the first partition, the second partition and the third partition are both connected to the heat pipe sealing cover, and the first partition is slidably engaged with the heat recovery chamber.

[0013] In a further embodiment, the connecting rod is slidably connected to the fixed rod, the pull rod is movably connected to the fixed rod, the pull rod is clearance-fitted with the heat recovery chamber and the second partition, and the output shaft of the propulsion motor is connected to the connecting rod.

[0014] Beneficial effects: This utility model discloses an energy-saving ventilation device for heat recovery in lithium battery factories.

[0015] By using two movable metal plates and one fixed metal plate, the distance between the plates can be dynamically adjusted. When higher heat conversion efficiency is needed, the movable metal plates are placed closer to the fixed metal plate to increase the contact area between the heat pipe and the air; when rapid ventilation is required, the movable metal plates are placed further away from the fixed metal plate to reduce airflow resistance.

[0016] A heat pipe runs through the second and third partitions, and a metal plate is fitted onto the heat pipe to form a highly efficient heat exchange structure. Fixed metal plates are permanently connected to the heat pipe, while movable metal plates are slidably connected to it, ensuring efficient heat transfer. Filters are installed at both ends of the heat pipe to intercept airborne particles and prevent them from entering the heat pipe. A dust box is located between the filter and the first partition for easy collection and cleaning of particles from the filter.

[0017] The second and third partitions are used to fix the heat pipe, ensuring its stability and sealing. The connecting rod is slidably connected to the fixed rod, and the pull rod is movably connected to the fixed rod, enabling the position adjustment of the movable metal plate.

[0018] By combining components such as a movable metal plate, connecting rod, propulsion motor, filter screen, and dust box, dynamic adjustment of heat conversion efficiency, automatic cleaning of impurities, and efficient ventilation and heat recovery are achieved. This solves the problems of traditional heat recovery devices, improves the automation level and maintenance convenience of the equipment, and provides an efficient solution for energy-saving ventilation in lithium battery plants. Attached Figure Description

[0019] Figure 1 This is a sectional perspective view of the present invention.

[0020] Figure 2 This is the front sectional view of this utility model.

[0021] Figure 3 This is a partial schematic diagram of the heat exchanger of this utility model.

[0022] Figure 4 This is a partial cross-sectional schematic diagram of the heat exchanger of this utility model.

[0023] Figure 5 This is the front sectional view of this utility model.

[0024] Figure 6 This is a perspective view of the present invention.

[0025] The attached diagram is labeled as follows: 1. Heat recovery chamber; 2. Air inlet chamber; 3. Air outlet chamber; 11. Air inlet; 12. Air outlet; 13. Dust box; 14. Propulsion motor; 15. Filter screen; 16. First partition; 17. Second partition; 18. Third partition; 21. Heat pipe; 22. Metal plate; 23. Connecting rod; 24. Pull rod; 25. Fixing rod. Detailed Implementation

[0026] This utility model discloses an energy-saving ventilation device for heat recovery in lithium battery factories. Through a movable metal plate and heat pipe structure, it achieves dynamic adjustment of heat conversion efficiency to meet the needs of different working conditions. The filter and dust box design automatically collects and cleans impurities on the surface of the heat pipe, reducing manual maintenance. The specific implementation of the solution is described in detail below.

[0027] Reference Figures 1-6 As shown, a heat recovery energy-saving ventilation device for lithium battery factory buildings includes:

[0028] The heat recovery chamber 1 includes a heat exchanger disposed within the heat recovery chamber 1, an air inlet chamber 2 and an air outlet chamber 3 disposed above and connected to the heat recovery chamber 1, and the heat recovery chamber 1 is provided with a first partition 16, a second partition 17 and a third partition 18.

[0029] The heat exchanger includes multiple heat pipes 21 penetrating the second partition 17 and the third partition 18. Each heat pipe 21 is a through-hole. Filters 15 are provided at both ends of each heat pipe 21, located at the second partition 17 and the third partition 18. A dust box 13 is provided between the filter 15 and the first partition 16. Multiple metal plates 22 are sleeved on each of the heat pipes 21. At least one fixed metal plate 22 and two movable metal plates 22 are included. Each metal plate 22 has an internal cavity. The fixed metal plate 22 is fixedly connected to the heat pipe 21, and the movable metal plates 22 are slidably connected to the heat pipe 21. The two movable metal plates 22 are located on top of one fixed metal plate. On both sides of 22, a connecting rod 23 is provided in the middle section of the fixed metal plate 22. The connecting rod 23 is slidably connected to the fixed rod 25. The pull rod 24 is movably connected to the fixed rod 25. The pull rod 24 is clearance-fitted with the heat recovery chamber 1 and the second partition 17. The middle section of the connecting rod 23 is movably connected to the fixed metal plate 22. Both ends of the connecting rod 23 are provided with U-shaped holes. The U-shaped holes are connected to the fixed rods 25 provided on the two movable metal plates 22. The pull rod 24 is sleeved on the fixed rod 25. The pull rod 24 extends out of the heat recovery chamber 1 and a propulsion motor 14 is installed on the heat recovery chamber 1 at the extension. The output shaft of the propulsion motor 14 is connected to the connecting rod 23.

[0030] Both the air inlet chamber 2 and the air inlet 11 are equipped with fans. The air inlet chamber 2 is connected to the air outlet chamber 3 via a heat pipe 21. The air inlet 11 is connected to the air outlet 12 via a metal plate 22. The air inlet 11 passes through the first partition 16 and is close to the heat exchanger. The air inlet 11 extends a distance beyond the first partition 16 (to prevent dust from the outer pipe from falling onto the first partition 16 and being blown up by the air inlet 11). The second partition 17 and the third partition 18 are both connected to the heat pipe 21 sealing cover. The first partition 16 is slidably engaged with the heat recovery chamber 1 (thereby removing accumulated dust).

[0031] Working principle: In the lithium battery factory, hot air (containing waste heat) enters the heat recovery chamber 1 through the air inlet 2. The hot air passes through the heat exchanger, where the heat is absorbed by the heat pipe 21 and the metal plate 22.

[0032] Fresh outdoor air enters the heat recovery chamber 1 through the air inlet 11. The outdoor air passes through the heat exchanger, absorbing heat transferred by the heat pipe 21 and the metal plate 22, and is thus preheated.

[0033] Heat pipe 21 and metal plate 22 serve as heat exchange mediums to transfer the heat of hot air inside the factory to fresh air outside. After heat exchange, the temperature of hot air inside the factory decreases and is discharged to the outside through air outlet 3. The temperature of fresh air outside increases and is sent into the factory through air outlet 12. Filter 15 intercepts particulate matter in the air to prevent it from entering the heat exchanger and ensure heat exchange efficiency.

[0034] During the adjustment process of the heat exchanger, the movable metal plate 22 is located on both sides of the fixed metal plate 22, maintaining a certain distance from the fixed metal plate 22. The contact area between the heat pipe 21 and the metal plate 22 is moderate, and the heat conversion efficiency and airflow resistance are in a balanced state.

[0035] When increased heat conversion efficiency is required, the control system activates the propulsion motor 14. The propulsion motor 14 pulls the connecting rod 23 via the tie rod 24. The connecting rod 23 moves the movable metal plate 22 closer to the fixed metal plate 22, reducing the distance between the movable and fixed metal plates 22. This increases the contact area between the heat pipe 21 and the air, and increases the heat capacity of the metal plate 22 within the cavity, enabling it to transfer heat more efficiently.

[0036] When rapid ventilation is required, the control system starts the propulsion motor 14. The propulsion motor 14 pushes the connecting rod 23 through the pull rod 24. The connecting rod 23 moves the movable metal plate 22 away from the fixed metal plate 22. The distance between the movable metal plate 22 and the fixed metal plate 22 increases, the air flow resistance decreases, and the ventilation efficiency is improved. The movement of the propulsion motor 14 is automatically adjusted according to the temperature, humidity and air quality parameters in the plant to achieve dynamic adjustment of heat conversion efficiency.

[0037] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A lithium battery plant heat recovery energy-saving ventilation device, comprising: The heat recovery cabin, the heat converter arranged in the heat recovery cabin, the air inlet cabin and the air outlet cabin arranged above the heat recovery cabin and communicated with the heat recovery cabin, Characterized in that the first partition plate, the second partition plate and the third partition plate are arranged in the heat recovery cabin, The heat converter comprises a plurality of heat pipes penetrating through the second partition plate and the third partition plate, a plurality of metal plates are sleeved on the plurality of heat pipes, at least one fixed metal plate and two movable metal plates are arranged in the plurality of metal plates, the two movable metal plates are arranged on the two sides of the fixed metal plate, the middle section of the fixed metal plate is provided with a connecting rod, the middle section of the connecting rod is movably connected with the fixed metal plate, U-shaped holes are arranged at the two ends of the connecting rod, the U-shaped holes are connected with the fixed rods arranged on the two movable metal plates, a pull rod is sleeved on the fixed rods, the pull rod extends out of the heat recovery cabin and is provided with a propelling motor mounted on the heat recovery cabin.

2. The energy-saving ventilation device with heat recovery for lithium battery factory according to claim 1, characterized in that: The air inlet cabin and the air inlet are provided with fans, the air inlet cabin is communicated with the air outlet cabin through the heat pipes, and the air inlet is communicated with the air outlet through the metal plates.

3. The energy-saving ventilation device with heat recovery for lithium battery factory according to claim 1, characterized in that: The two ends of the heat pipes and the second partition plate and the third partition plate are provided with filter screens, and the filter screens and the first partition plate are provided with dust boxes.

4. The energy-saving ventilation device with heat recovery for lithium battery factory according to claim 1, characterized in that: The heat pipes are through holes, the fixed metal plates are fixedly connected with the heat pipes, and the movable metal plates are slidably connected with the heat pipes.

5. The energy-saving ventilation device with heat recovery for lithium battery factory according to claim 2, characterized in that: The air inlet passes through the first partition plate and is close to the heat converter, the air inlet extends out of the first partition plate by a distance, the second partition plate and the third partition plate are connected with the sealing covers of the heat pipes, and the first partition plate is slidably connected with the heat recovery cabin.

6. The energy-saving ventilation device with heat recovery for lithium battery factory according to claim 1, characterized in that: The connecting rod and the fixed rod are slidably connected, the pull rod and the fixed rod are movably connected, the pull rod is in clearance fit with the heat recovery cabin and the second partition plate, and the output shaft of the propelling motor is connected with the connecting rod.

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