Thermoelectric semiconductor waste heat recovery system based on heat pipe

Abstract

This utility model relates to a waste heat recovery and utilization system based on a heat pipe thermoelectric semiconductor, comprising a rotary dehumidifier, and further comprising: a heat exchange device, including a heat exchange chamber and a superconducting heat pipe disposed within the heat exchange chamber, the air inlet of the heat exchange chamber being connected to the air outlet duct of the rotary dehumidifier; and a heat conversion device, including a thermoelectric generator, the hot end of which is in contact with the heat exchange chamber. This utility model introduces the air carrying a large amount of heat after dehumidification by the rotary dehumidifier into the heat exchange device. The superconducting heat pipe absorbs the heat from the air, raising the internal temperature of the heat exchange chamber. The thermoelectric generator in the heat conversion device absorbs the heat from the heat exchange chamber and generates an electric current, converting the waste heat into electrical energy. This fully utilizes the large amount of heat carried by the air after dehumidification by the rotary dehumidifier, avoiding energy waste.

Description

Technical Field

[0001] This utility model relates to the field of waste heat utilization technology, and in particular to a thermoelectric semiconductor waste heat recovery and utilization system based on heat pipes. Background Technology

[0002] A large amount of waste heat is emitted in lithium battery factories, which not only wastes energy but also impacts the environment. Therefore, waste heat recovery technology has emerged to improve energy utilization efficiency and reduce energy consumption costs.

[0003] Lithium-ion batteries are highly sensitive to humidity, especially during processes such as cathode material preparation, cell assembly, and electrolyte injection. High humidity can cause materials to absorb water, affecting battery performance and lifespan. Therefore, lithium-ion battery factories typically require strict humidity control, necessitating the use of rotary dehumidifiers. The dehumidifier rotor is made of highly absorbent materials, such as silica gel, molecular sieves, and alumina, and its function is to absorb moisture from the air after refrigeration dehumidification, making the air even drier. The regeneration zone of the rotor uses a high-temperature regeneration heating air supply system to continuously dry the moisture in the rotor and discharge it outside the unit. The air temperature after dehumidification by the rotary dehumidifier can reach 80-140℃, but the heat carried by the air is not utilized, resulting in energy waste. Utility Model Content

[0004] Therefore, in view of the technical problem that a large amount of heat carried by the air after dehumidification by the rotary dehumidifier is not utilized, resulting in energy waste, this utility model needs to provide a waste heat recovery and utilization system based on heat pipe thermoelectric semiconductor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model first provides a waste heat recovery and utilization system based on heat pipe thermoelectric semiconductor, which includes a rotary dehumidifier and further includes:

[0007] A heat exchange device includes a heat exchange chamber and superconducting heat pipes disposed within the heat exchange chamber; the air inlet of the heat exchange chamber is connected to the air outlet duct of a rotary dehumidifier; and

[0008] A heat exchange device includes a thermoelectric generator, the hot end of which is in contact with a heat exchange chamber.

[0009] The waste heat recovery and utilization system provided by this utility model introduces the air carrying a large amount of heat after dehumidification by a rotary dehumidifier into a heat exchange device. The superconducting heat pipe absorbs the heat of the air, raising the internal temperature of the heat exchange box. The thermoelectric generator in the heat conversion device absorbs the heat of the heat exchange box and generates current. The thermoelectric generator can be connected to an energy storage device by wires to store the electrical energy, or the thermoelectric generator can be directly connected to the electrical equipment to make the equipment work. This utility model makes full use of the large amount of heat carried by the air after dehumidification by the rotary dehumidifier, converting waste heat into electrical energy and avoiding energy waste.

[0010] As a further improvement to the above-mentioned solution of this utility model, there are multiple superconducting heat pipes, which are arranged vertically at intervals inside the heat exchange box; this improves the heat exchange efficiency and ensures that heat energy can be fully recovered and utilized.

[0011] As a further improvement of the above-mentioned solution of this utility model, a horizontally arranged partition is installed inside the heat exchange box, which divides the interior of the heat exchange box into an upper chamber and a lower chamber. The air inlet of the heat exchange box is connected to the lower chamber, and the air outlet of the heat exchange box connects the upper chamber to the outside. Multiple superconducting heat pipes are vertically inserted through the partition and fixedly connected to the partition. Multiple flow holes are opened through the partition. This improves the heat exchange efficiency and ensures that heat energy can be fully recovered and utilized.

[0012] As a further improvement to the above-mentioned solution of this utility model, the heat conversion device further includes a heat conversion box, an inverter, and a storage battery; one side of the heat conversion box is open and fixed on the heat exchange box, the thermoelectric generator is installed inside the heat exchange box, the thermoelectric generator is connected to the inverter through wires, and the inverter is connected to the storage battery through wires; the storage battery stores electrical energy for convenient use.

[0013] As a further improvement to the above-mentioned solution of this utility model, there are multiple thermoelectric semiconductor generators, which are arranged horizontally and distributed in a matrix within the heat conversion box; this improves the heat conversion efficiency and ensures that the heat energy can be fully recovered and utilized.

[0014] As a further improvement to the above-mentioned solution of this utility model, the hot end of the thermoelectric semiconductor generator is fixed on the heat exchange box.

[0015] As a further improvement to the above-mentioned solution of this utility model, the heat pipe-based thermoelectric semiconductor waste heat recovery and utilization system also includes a base, and the heat exchange box and the heat conversion box are both fixed on the base.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention provides a waste heat recovery system that introduces the heat-laden air, dehumidified by a rotary dehumidifier, into a heat exchange device. A superconducting heat pipe absorbs the heat from the air, rapidly raising the internal temperature of the heat exchange chamber. Thermoelectric generators in the heat exchange device absorb the heat and generate electricity. The electrical energy can be stored by connecting the thermoelectric generator to an energy storage device via wires, or it can be directly connected to the electrical equipment for operation. This invention fully utilizes the large amount of heat carried by the air after dehumidification by the rotary dehumidifier, converting waste heat into electrical energy and avoiding energy waste. This invention has the advantages of high heat transfer efficiency, energy saving and environmental protection, and safety and reliability, effectively reducing system carbon emissions and improving system energy utilization. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a heat pipe-based thermoelectric semiconductor waste heat recovery and utilization system proposed in an embodiment of the present invention.

[0019] Reference numerals in the attached diagram: 1. Rotary dehumidifier; 2. Heat exchange chamber; 3. Superconducting heat pipe; 4. Partition; 5. Upper chamber; 6. Lower chamber; 7. Heat conversion chamber; 8. Inverter; 9. Battery; 10. Base. Detailed Implementation

[0020] To facilitate understanding of this invention, a more comprehensive description of the invention will be provided below with reference to specific embodiments. However, this invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of this invention.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0022] Reference Figure 1 This embodiment proposes a heat pipe-based thermoelectric semiconductor waste heat recovery and utilization system, which includes a rotary dehumidifier 1, a heat exchange device and a heat conversion device, and may also include a base 10.

[0023] Rotary dehumidifier 1 is existing technology. It uses a honeycomb-shaped moisture-absorbing rotor as its core, combined with air handling, regeneration, and auxiliary systems to achieve continuous and efficient dehumidification. The structure of rotary dehumidifier 1 will not be described in detail here. Generally, rotary dehumidifier 1 has an air inlet duct and an air outlet duct. The air inlet duct allows the air to be dehumidified to enter the rotary dehumidifier 1, while the air outlet duct outputs dry air that carries a large amount of heat.

[0024] A heat exchange device is used to recover the heat carried by the dehumidified air. In this embodiment, the heat exchange device includes a heat exchange chamber 2 and multiple superconducting heat pipes 3. The heat exchange chamber 2 is disposed on one side of the rotary dehumidifier 1 and fixed on the base 10. A horizontally arranged partition 4 is provided inside the heat exchange chamber 2, which divides the interior of the heat exchange chamber 2 into an upper chamber 5 and a lower chamber 6 arranged vertically. An air inlet communicating with the lower chamber is opened on the bottom side of the heat exchange chamber 2 facing the rotary dehumidifier 1, and the air inlet of the heat exchange chamber 2 is connected to the air outlet duct of the rotary dehumidifier 1 through a pipe. An air outlet communicating with the upper chamber is opened on the heat exchange chamber 2. In order to achieve air circulation, multiple flow holes (not shown) are opened through the partition 4. The dry air discharged from the rotary dehumidifier 1 enters the lower chamber 6 through the air inlet, enters the upper chamber 5 along the flow holes, and is then discharged to the outside through the air outlet. Multiple superconducting heat pipes 3 are vertically spaced and installed on the partition 4. These heat pipes 3 are existing technology. Each heat pipe 3 has multiple small channels with annular cross-sections filled with a heat-conducting working fluid. At the end of the heat pipe 3 located in the lower chamber 6, air is heated, causing the heat-conducting working fluid to boil and evaporate, forming steam. This creates a pressure difference that causes the steam to flow along the channels, carrying heat to the end of the heat pipe 3 located in the upper chamber 5. The steam condenses into liquid, releasing heat, and then flows back to the end in the lower chamber 6 through a capillary structure, forming a closed heat conduction cycle. The heat pipes 3 can absorb a large amount of heat from dry air, thereby raising the temperature inside the heat exchange chamber 2. The structure of the heat pipes 3 will not be described in detail here.

[0025] The heat conversion device is used to absorb heat from the heat exchange chamber 2 and convert it into electrical energy. In this embodiment, the heat conversion device includes multiple thermoelectric generators (not shown), a heat conversion chamber 7, an inverter 8, and a battery 9. The heat conversion chamber 7 is fixed on the base 10 and located on one side of the heat exchange chamber 2. The side of the heat conversion chamber 7 facing the heat exchange chamber 2 is open and fixed on the heat exchange chamber 2 (corresponding to the lower chamber 6). The thermoelectric generator is existing technology, and it has a hot end and a cold end. When the temperature difference between the hot end and the cold end exceeds the preset power generation temperature, the thermoelectric generator will start generating electricity. Since the specific structure and power generation principle of the thermoelectric generator are well known to those skilled in the art, the thermoelectric generator will not be described in detail here. Multiple thermoelectric generators are horizontally fixedly installed in the heat conversion chamber 7 and arranged in a matrix. The hot end of the thermoelectric generator faces the heat exchange chamber 2 and is fixed on the heat exchange chamber 2. A heat sink can be installed at the cold end of the thermoelectric generator. The thermoelectric generator is connected to the inverter 8 via wires, and the inverter 8 is connected to the battery 9 via wires. With this structure, due to the temperature difference, the thermoelectric generator generates current. This current is converted by the inverter 8 into stable electrical energy stored in the battery 9, achieving waste heat recovery. Alternatively, in some embodiments, the thermoelectric generator can be directly electrically connected to the electrical equipment using wires, directly supplying the electrical energy generated by the thermoelectric generator to the equipment.

[0026] In this embodiment, the heat pipe-based thermoelectric semiconductor waste heat recovery system operates as follows: After being dehumidified by the rotary dehumidifier 1, the dry air carrying a large amount of heat enters the lower chamber 6 of the heat exchange box 2, then flows through the flow hole into the upper chamber 5, and finally exits from the air outlet. During this process, multiple superconducting heat pipes 3 absorb the low-grade heat of the air, causing the internal temperature of the lower chamber 6 of the heat exchange box 2 to rise rapidly. Due to the temperature difference, the thermoelectric semiconductor generator will generate current, which will be converted by the inverter 8 to form stable electrical energy stored in the battery 9, thus achieving the effect of waste heat recovery.

[0027] It should be noted that when a component is said to be "installed on" another component, it can be directly on the other component or it may be in a component that is centered on it. When a component is said to be "set on" another component, it can be directly set on the other component or it may also be in a component that is centered on it. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or it may also be in a component that is centered on it.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0030] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A waste heat recovery and utilization system based on heat pipe thermoelectric semiconductor, comprising a rotary dehumidifier (1), characterized in that, It also includes: A heat exchange device, comprising a heat exchange chamber (2) and a superconducting heat pipe (3) disposed within the heat exchange chamber (2), wherein the air inlet of the heat exchange chamber (2) is connected to the air outlet duct of the rotary dehumidifier (1); and The heat exchange device includes a thermoelectric generator, the hot end of which is in contact with the heat exchange box (2).

2. The waste heat recovery and utilization system based on heat pipe thermoelectric semiconductor according to claim 1, characterized in that, There are multiple superconducting heat pipes (3), which are arranged vertically at intervals inside the heat exchange box (2).

3. The waste heat recovery and utilization system based on heat pipe thermoelectric semiconductor according to claim 2, characterized in that, A horizontally arranged partition (4) is installed inside the heat exchange box (2). The partition (4) divides the interior of the heat exchange box (2) into an upper chamber (5) and a lower chamber (6). The air inlet of the heat exchange box (2) is connected to the lower chamber (6), and the air outlet of the heat exchange box (2) connects the upper chamber (5) to the outside. Multiple superconducting heat pipes (3) are vertically inserted through the partition (4) and fixedly connected to the partition (4). Multiple flow holes are opened through the partition (4).

4. The waste heat recovery and utilization system based on heat pipe thermoelectric semiconductor according to claim 1, characterized in that, The heat conversion device also includes a heat conversion box (7), an inverter (8) and a battery (9); one side of the heat conversion box (7) is open and fixed on the heat exchange box (2), the thermoelectric generator is installed inside the heat exchange box (2), the thermoelectric generator is connected to the inverter (8) through wires, and the inverter (8) is connected to the battery (9) through wires.

5. The waste heat recovery and utilization system based on heat pipe thermoelectric semiconductor according to claim 4, characterized in that, There are multiple thermoelectric semiconductor generators, which are arranged horizontally and distributed in a matrix within the heat conversion box (7).

6. The waste heat recovery and utilization system based on heat pipe thermoelectric semiconductor according to claim 4, characterized in that, The hot end of the thermoelectric semiconductor generator is fixed on the heat exchange box (2).

7. The waste heat recovery and utilization system based on heat pipe thermoelectric semiconductor according to claim 4, characterized in that, The heat pipe-based thermoelectric semiconductor waste heat recovery system also includes a base (10), and the heat exchange box (2) and the heat conversion box (7) are both fixed on the base (10).

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