Heat preservation power generation device based on Seebeck effect

Abstract

The utility model provides a thermal insulation power generation device based on Seebeck effect, which belongs to the technical field of thermoelectric power generation, and comprises a thermal insulation box, a heat transfer assembly, a thermoelectric generator, an energy storage assembly and a cooling assembly, and the thermal insulation box is provided with an accommodating cavity and an avoiding hole for accommodating a heat transfer pipe; the heat transfer assembly is arranged in the containing cavity and comprises a plurality of heat transfer pieces which are in butt joint in sequence to form an annular structure. The thermoelectric generator comprises a plurality of thermoelectric power generation pieces arranged on the periphery of the heat transfer assembly in a surrounding mode, and the hot ends of the thermoelectric power generation pieces are close to the heat transfer assembly. The energy storage assembly is electrically connected with the thermoelectric generator and used for storing electric energy generated by the thermoelectric generator. The cooling assembly is arranged in the containing cavity, surrounds the periphery of the thermoelectric generator and is used for cooling the cold end of the thermoelectric power generation piece. The utility model provides a heat preservation power generation device based on the Seebeck effect, and aims to solve the problems that in the prior art, temperature difference exists between a pipeline and a heat preservation layer, and the temperature of the heat preservation layer is higher than the room temperature, so that heat is wasted.

Description

Technical Field

[0001] The utility model belongs to the technical field of temperature difference power generation, and more specifically, relates to a heat preservation power generation device based on the Seebeck effect. Background Art

[0002] The Seebeck effect refers to a phenomenon in which, in a closed circuit composed of two dissimilar conductive materials, when the two contact points have different temperatures, the potential generated in the circuit converts thermal energy into electrical energy. Thermoelectricity, also known as the first thermoelectric effect, refers to the thermoelectric phenomenon in which a voltage difference between two materials is caused by a temperature difference between two different electrical conductors or semiconductors. In a circuit composed of two metals, A and B, if the temperatures of the two contact points are different, a current known as a thermocurrent will flow in the circuit. The essence of the Seebeck effect lies in the contact potential difference generated when two metals come into contact. This potential difference depends on two basic factors: the metal's electronic work function and effective electron density. Semiconductors have a large thermoelectric potential and can be used as thermoelectric generators.

[0003] Thermal power plants contain numerous pipes used to transport heat medium. To minimize heat loss during heat transfer, these pipes are typically wrapped with insulation jackets. The temperature inside the pipes typically reaches 150-540°C, while the temperature outside the insulation jackets ranges from 40-75°C. This creates a temperature difference between the pipes and the jackets. While the jacket's temperature is lower than the pipe's, it's still higher than room temperature, resulting in heat damage and wasted energy. Utilizing this temperature difference between the pipe and jacket temperatures can avoid energy waste. Utility Model Content

[0004] The purpose of the utility model is to provide a heat preservation power generation device based on the Seebeck effect, aiming to solve the problem in the prior art that there is a temperature difference between the pipeline and the insulation layer, and the temperature of the insulation layer is higher than the room temperature, resulting in heat waste.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] Provided is a heat preservation power generation device based on the Seebeck effect, comprising:

[0007] The heat preservation box has a receiving cavity and is provided with a avoidance hole for accommodating the heat transfer pipe, and the heat preservation box cover is arranged outside the heat transfer pipe;

[0008] A heat transfer component is disposed in the accommodating cavity and surrounds the heat transfer pipe, the heat transfer component comprising a plurality of heat transfer elements that are sequentially connected to form a ring structure;

[0009] A thermoelectric generator comprising a plurality of thermoelectric generating sheets arranged around the periphery of the heat transfer component, wherein the hot ends of the thermoelectric generating sheets are close to the heat transfer component;

[0010] an energy storage component, disposed outside the heat preservation box and electrically connected to the thermoelectric generator, for storing the electrical energy generated by the thermoelectric generator; and

[0011] The cooling component is arranged in the accommodating cavity and surrounds the outer periphery of the thermoelectric generator, and is used for cooling the cold end of the thermoelectric generator sheet.

[0012] In a possible implementation, the heat transfer element includes an arc-shaped heat transfer plate and a plurality of heat-conducting fins radially arranged outside the heat transfer plate. The inner circumference of the heat transfer plate is attached to the heat transfer tube, and adjacent heat-conducting fins are spaced apart.

[0013] In a possible implementation, the ends of the heat transfer plates are further provided with connecting pieces extending in the radial direction, and the connecting pieces are used to connect with adjacent heat transfer plates.

[0014] In one possible implementation, the cooling component includes:

[0015] a heat dissipation mechanism, arranged around the outer periphery of the thermoelectric generator, the heat dissipation mechanism comprising a plurality of heat dissipation members that are sequentially connected to form a device; and

[0016] The cooling mechanism comprises a cooling pipe arranged outside the heat dissipation mechanism, a water storage tank connected to the cooling pipe, and a delivery pump arranged on the cooling pipe.

[0017] In a possible implementation, the cooling pipe is spirally wound around the heat dissipation mechanism.

[0018] In a possible implementation, the heat sink includes an arc-shaped heat sink plate and a plurality of heat sink fins radially arranged on an inner circumference of the heat sink plate, and heat sink gaps are formed between adjacent heat sink fins.

[0019] In one possible implementation, the energy storage component includes a voltage stabilizer and a battery electrically connected to the voltage stabilizer. The voltage stabilizer is also electrically connected to the thermoelectric generator for stabilizing the electric energy generated by the thermoelectric generator and transmitting it to the battery.

[0020] In one possible implementation, the thermal insulation box includes two box bodies with accommodating grooves, and avoidance grooves are respectively opened at opposite ends of the box bodies. After the two box bodies are docked, the corresponding avoidance grooves are enclosed to form the avoidance hole, and the two accommodating grooves are docked to form the accommodating cavity.

[0021] In a possible implementation, an inner wall of the box is provided with a thermal insulation layer to reduce heat exchange between the accommodating cavity and the external environment.

[0022] In a possible implementation, the outer wall of the box body is further provided with a connecting flange, a fixing hole is opened on the connecting flange, the connecting flange is used to fit together with the connecting flange of another box body, and a locking piece is inserted into the fixing hole.

[0023] The beneficial effects of the Seebeck effect-based heat preservation power generation device provided by the present invention are as follows: Compared with the prior art, the Seebeck effect-based heat preservation power generation device of the present invention sequentially arranges a heat transfer component, a thermoelectric generator, a cooling component, and a heat preservation box outside the heat pipe. The heat transfer component transfers the heat of the heat pipe to the hot end of the thermoelectric generator, and the cooling component cools the cold end of the thermoelectric generator, so that the thermoelectric generator converts heat energy into electrical energy using the temperature difference, and then the electrical energy is stored by the energy storage component. Multiple heat transfer components are arranged outside the heat pipe to fully receive and transfer the heat of the heat pipe. The heat preservation box cover is arranged outside the cooling component to avoid heat exchange between the cooling component and the outside, ensuring the temperature difference between the hot end and the cold end of the thermoelectric generator. The present invention uses the temperature of the heat pipe to generate electricity, which can be stored in the energy storage component to power lighting equipment or production equipment in the factory, saving energy consumption and avoiding energy waste. In addition, the solution in the present invention can provide insulation sleeves on both sides of the insulation box. The insulation sleeves and the insulation box form a continuous insulation structure to prevent the heat of the heat transfer pipe from dissipating outward, thereby minimizing heat energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic structural diagram of a heat preservation power generation device based on the Seebeck effect provided in an embodiment of the present invention;

[0026] Figure 2 A cross-sectional view of a heat preservation power generation device based on the Seebeck effect provided by an embodiment of the present utility model;

[0027] Figure 3 This is a schematic structural diagram of the cooling mechanism used in an embodiment of the present utility model.

[0028] In the figure: 1. Heat transfer component; 101. Heat transfer element; 1011. Heat transfer plate; 1012. Heat conducting fin; 1013. Connecting plate; 2. Thermoelectric generator; 201. Thermoelectric generator plate; 3. Heat dissipation mechanism; 301. Heat dissipation plate; 302. Heat dissipation fin; 4. Cooling mechanism; 401. Cooling pipe; 402. Water storage tank; 403. Delivery pump; 5. Insulation box; 501. Avoidance hole; 502. Box body; 503. Connecting flange; 5031. Fixing hole. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] In the claims, specification, and drawings of the present invention, unless otherwise expressly defined, terms such as "first," "second," or "third" are used to distinguish between different objects, rather than to describe a specific order. Unless otherwise specified, other directional words such as "vertical," "clockwise," and "counterclockwise" are used to indicate directions or positional relationships based on the directions and positional relationships shown in the drawings, and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or component referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific scope of protection of the present invention. In the claims, specification, and drawings of the present invention, unless otherwise expressly defined, terms such as "fixed connection" or "fixed connection" should be understood in a broad sense, that is, any connection method without a displacement relationship or relative rotation relationship between the two, that is, including non-detachable fixed connection, detachable fixed connection, integral connection, and fixed connection through other devices or components. In the claims, specification, and drawings of the present invention, terms such as "including," "having," and their variations are intended to mean "including but not limited to."

[0031] Please also refer to Figures 1 to 3The Seebeck effect-based heat preservation power generation device provided by the present invention is now described. The Seebeck effect-based heat preservation power generation device includes a heat preservation box 5, a heat transfer component 1, a thermoelectric generator 2, an energy storage component, and a cooling component. The heat preservation box 5 has a storage cavity and a relief hole 501 for accommodating a heat transfer pipe. The heat preservation box 5 is disposed outside the heat transfer pipe. The heat transfer component 1 is disposed within the storage cavity and surrounds the heat transfer pipe. The heat transfer component 1 includes a plurality of heat transfer elements 101 that are sequentially connected to form a ring structure. The thermoelectric generator 2 includes a plurality of thermoelectric power generation sheets 201 disposed around the periphery of the heat transfer component 1, with the hot end of the thermoelectric power generation sheet 201 adjacent to the heat transfer component 1. The energy storage component is disposed outside the heat preservation box 5 and is electrically connected to the thermoelectric generator 2 for storing the electrical energy generated by the thermoelectric generator 2. The cooling component is disposed within the storage cavity and surrounds the thermoelectric generator 2 for cooling the cold end of the thermoelectric power generation sheet 201.

[0032] The Seebeck effect-based heat preservation power generation device provided by the present invention, compared to the prior art, comprises a heat transfer component 1, a thermoelectric generator 2, a cooling component, and an insulation box 5, arranged in sequence outside a heat pipe. The heat transfer component 1 transfers heat from the heat pipe to the hot end of the thermoelectric generator 2, while the cooling component cools the cold end of the thermoelectric generator 2, thereby enabling the thermoelectric generator 2 to convert thermal energy into electrical energy using the temperature difference, which is then stored by the energy storage component. Multiple heat transfer components 101 are arranged around the heat pipe to fully receive and transfer heat from the heat pipe. The insulation box 5 is positioned outside the cooling component to prevent heat exchange between the cooling component and the outside world, ensuring a temperature difference between the hot and cold ends of the thermoelectric generator 2. The present invention utilizes the temperature of the heat pipe to generate electricity, which, after being stored in the energy storage component, can be used to power lighting equipment or production equipment within the factory, saving energy and avoiding energy waste. In addition, the solution in the present invention can provide insulation sleeves on both sides of the insulation box 5. The insulation sleeves and the insulation box 5 form a continuous insulation structure to prevent the heat of the heat transfer pipe from dissipating outward, thereby minimizing heat energy loss.

[0033] It should be noted that since the temperature of the insulation sleeve outside the heat transfer pipe is between 40-75°C, which is higher than the room temperature, if the cooling component is directly exposed to the room, it will affect the temperature of the cold end of the thermoelectric generator 2, thereby affecting the thermoelectric generator 2 to convert heat energy into electrical energy.

[0034] It should be noted that, since the heat transfer pipe often vibrates, after the structure of the present invention is installed on the heat transfer pipe, the counterweight of the heat transfer pipe can be increased to reduce the vibration amplitude.

[0035] Optionally, a heat insulating member is provided between two adjacent thermoelectric power generation sheets 201 , and the heat insulating member and the thermoelectric power generation sheets 201 are connected to form a closed ring structure, thereby reducing heat transfer inside and outside the thermoelectric power generation sheets 201 .

[0036] Specifically, the plurality of thermoelectric power generation sheets 201 are electrically connected.

[0037] In some embodiments, see Figure 2 The heat transfer element 101 includes an arc-shaped heat transfer plate 1011 and a plurality of heat-conducting fins 1012 radially arranged outside the heat transfer plate 1011. The inner circumference of the heat transfer plate 1011 is attached to the heat transfer tube, and adjacent heat-conducting fins 1012 are spaced apart.

[0038] Heat transfer plate 1011 adheres to the outer wall of the heat transfer pipe, directly receiving and conducting heat energy from the pipe. Heat transfer fins 1012 extend radially along the heat transfer plate 1011, with adjacent heat transfer fins 1012 spaced apart. This increases the contact area between the heat transfer fins 1012 and the air, facilitating heat transfer to the air. The hot end of thermoelectric generator 201 is positioned outside heat transfer assembly 1, thereby receiving heat energy. In this embodiment, heat transfer plate 1011 can fully absorb heat from the heat transfer pipe, while the heat transfer fins can fully transfer heat from the heat transfer plate 1011 to the outside, achieving sufficient heat energy transmission.

[0039] Optionally, two adjacent heat transfer plates 1011 are screwed, bonded or clamped.

[0040] In some embodiments, see Figure 2 The end of the heat transfer plate 1011 is further provided with a connecting piece 1013 extending in the radial direction, and the connecting piece 1013 is used to connect with the adjacent heat transfer plate 1011.

[0041] The connecting pieces 1013 extend radially outwardly of the heat transfer plate 1011 , thereby increasing the contact area with adjacent connecting pieces 1013 and improving the reliability of the connection.

[0042] Optionally, the connection surface of the connection piece 1013 is provided with thermal conductive silicone for connecting two adjacent connection pieces 1013 .

[0043] In some embodiments, see Figure 3 The cooling assembly includes a heat dissipation mechanism 3 and a cooling mechanism 4. The heat dissipation mechanism 3 is arranged around the outer periphery of the thermoelectric generator 2. The heat dissipation mechanism 3 includes a plurality of heat dissipation parts that are sequentially connected to form a device; the cooling mechanism 4 includes a cooling pipe 401 arranged outside the heat dissipation mechanism 3 and a water tank 402 connected to the cooling pipe 401, and a delivery pump 403 arranged on the cooling pipe 401.

[0044] The heat sink dissipates heat from the thermoelectrically conductive sheet, thereby reducing the temperature at the cold end of the sheet. However, because the sheet is located within the thermal insulation box 5, long-term heat dissipation prevents the heat within the box from being dissipated, increasing the temperature at the cold end of the thermoelectric generator sheet 201. Therefore, this embodiment also includes a cooling mechanism 4. Cooling fluid is transported within the cooling tube 401, which lowers the temperature within the thermal insulation box 5 through heat exchange with the air.

[0045] It should be noted that since a heat transfer component 1 is provided outside the heat transfer pipe, a thermoelectric generator 2 is provided outside the heat transfer component 1, and the heat transfer component 1 and the thermoelectric generator 2 respectively form a large number of ring structures, the heat transfer inside and outside the thermoelectric generator 2 can be effectively reduced. The cooling pipe 401 is provided outside the thermoelectric generator 2, and therefore will not affect the temperature of the thermoelectric generator 2 and the heat transfer component 1.

[0046] Optionally, cooling fins are provided in the water tank 402 to cool the coolant.

[0047] In some embodiments, see Figure 3 The cooling tube 401 is spirally wound around the heat dissipation mechanism 3 .

[0048] The cooling tube 401 is spirally wound outside the heat dissipation mechanism 3 , so that the temperature of the heat dissipation mechanism 3 can be uniformly reduced, thereby avoiding temperature differences on the heat dissipation mechanism 3 .

[0049] In some embodiments, see Figure 2 The heat dissipation element includes an arc-shaped heat dissipation plate 301 and a plurality of heat dissipation fins 302 radially arranged on the inner circumference of the heat dissipation plate 301 , and heat dissipation gaps are formed between adjacent heat dissipation fins 302 .

[0050] The heat dissipation fins 302 extend radially along the heat dissipation plate 301, and a heat dissipation space is formed between adjacent heat dissipation fins 302, thereby enabling rapid and sufficient heat exchange with the air. The heat dissipation plate 301 not only connects and secures multiple heat dissipation fins 302, but also increases heat exchange with the air near the cooling mechanism 4, thereby rapidly reducing the temperature.

[0051] Optionally, two adjacent heat dissipation plates 301 are screwed, clamped or bonded, for example, by bonding with thermally conductive silicone.

[0052] In some embodiments, not shown in the figure, the energy storage component includes a voltage stabilizer and a battery electrically connected to the voltage stabilizer. The voltage stabilizer is also electrically connected to the thermoelectric generator 2 for stabilizing the electric energy generated by the thermoelectric generator 2 and transmitting it to the battery.

[0053] The voltage stabilizer can stabilize the electric energy pressure generated by the thermoelectric power generation sheet 201 and transmit it to the battery, thereby preventing the unstable electric energy pressure generated by the thermoelectric power generation sheet 201 from being directly transmitted to the battery and causing damage to the battery.

[0054] Optionally, the energy storage component is arranged outside the thermal insulation box 5 and can be connected to the thermal insulation box 5, and the thermal insulation box 5 has a wire hole.

[0055] In some embodiments, see Figure 1 The thermal insulation box 5 includes two boxes 502 with accommodating grooves. The opposite ends of the boxes 502 are respectively provided with avoidance grooves. After the two boxes 502 are docked, the corresponding avoidance grooves are enclosed to form an avoidance hole 501, and the two accommodating grooves are docked to form an accommodating cavity.

[0056] The two boxes 502 can be docked and more conveniently placed outside the cooling assembly, thereby improving installation efficiency.

[0057] Optionally, a sealing layer is provided on the inner wall of the avoidance groove to enhance the sealing performance with the delivery pipe.

[0058] In some embodiments, see Figure 1 The inner wall of the box body 502 is provided with a heat-insulating layer to reduce the heat exchange between the accommodating cavity and the external environment.

[0059] The thermal insulation layer can reduce the heat exchange between the accommodating cavity and the outer panel environment, thereby preventing the external environment from affecting the normal operation of the thermoelectric generator 2 .

[0060] In some embodiments, see Figure 1 The outer wall of the box body 502 is further provided with a connecting flange 503, and a fixing hole 5031 is opened on the connecting flange 503. The connecting flange 503 is used to fit with the connecting flange 503 of another box body 502, and a locking piece is inserted into the fixing hole 5031.

[0061] After the connecting flanges 503 of the two boxes 502 are in contact, the locking members are inserted into the corresponding fixing holes 5031 to secure the two boxes 502. The solution of this embodiment not only realizes the detachable connection of the two boxes 502, but also eliminates the need to open holes in the boxes 502, thereby improving the sealing performance of the boxes 502.

[0062] Optionally, the locking member may be a bolt and a nut, or a clamping member.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heat preservation power generation device based on the Seebeck effect, characterized in that: include: The heat preservation box has a receiving cavity and is provided with a avoidance hole for accommodating the heat transfer pipe, and the heat preservation box cover is arranged outside the heat transfer pipe; A heat transfer component is disposed in the accommodating cavity and surrounds the heat transfer pipe, the heat transfer component comprising a plurality of heat transfer elements that are sequentially connected to form a ring structure; A thermoelectric generator comprising a plurality of thermoelectric generating sheets arranged around the periphery of the heat transfer component, wherein the hot ends of the thermoelectric generating sheets are close to the heat transfer component; an energy storage component, disposed outside the heat preservation box and electrically connected to the thermoelectric generator, for storing the electrical energy generated by the thermoelectric generator; as well as The cooling component is arranged in the accommodating cavity and surrounds the outer periphery of the thermoelectric generator, and is used for cooling the cold end of the thermoelectric generator sheet.

2. The heat preservation power generation device based on the Seebeck effect according to claim 1, characterized in that: The heat transfer element includes an arc-shaped heat transfer plate and a plurality of heat-conducting fins radially arranged outside the heat transfer plate. The inner circumference of the heat transfer plate is attached to the heat transfer tube, and two adjacent heat-conducting fins are spaced apart.

3. The heat preservation power generation device based on the Seebeck effect according to claim 2, characterized in that: The ends of the heat transfer plates are further provided with connecting pieces extending in the radial direction, and the connecting pieces are used to connect with the adjacent heat transfer plates.

4. The heat preservation power generation device based on the Seebeck effect according to claim 1, characterized in that: The cooling assembly comprises: a heat dissipation mechanism, arranged around the outer periphery of the thermoelectric generator, the heat dissipation mechanism comprising a plurality of heat dissipation members that are sequentially connected to form a device; and The cooling mechanism comprises a cooling pipe arranged outside the heat dissipation mechanism, a water storage tank connected to the cooling pipe, and a delivery pump arranged on the cooling pipe.

5. The heat preservation power generation device based on the Seebeck effect according to claim 4, characterized in that: The cooling pipe is spirally wound outside the heat dissipation mechanism.

6. The heat preservation power generation device based on the Seebeck effect according to claim 4, characterized in that: The heat sink comprises an arc-shaped heat sink plate and a plurality of heat sink fins radially arranged on the inner peripheral surface of the heat sink plate, and heat sink gaps are formed between adjacent heat sink fins.

7. The heat preservation power generation device based on the Seebeck effect according to claim 1, characterized in that: The energy storage component includes a voltage stabilizer and a battery electrically connected to the voltage stabilizer. The voltage stabilizer is also electrically connected to the thermoelectric generator and is used to stabilize the electric energy generated by the thermoelectric generator and transmit it to the battery.

8. The heat preservation power generation device based on the Seebeck effect according to claim 1, characterized in that: The thermal insulation box includes two boxes with accommodating grooves, and avoidance grooves are respectively opened at opposite ends of the box. After the two boxes are docked, the corresponding avoidance grooves are enclosed to form the avoidance hole, and the two accommodating grooves are docked to form the accommodating cavity.

9. The heat preservation power generation device based on the Seebeck effect according to claim 8, characterized in that: The inner wall of the box body is provided with a heat-insulating layer for reducing heat exchange between the accommodating cavity and the external environment.

10. The heat preservation power generation device based on the Seebeck effect according to claim 8, characterized in that: The outer wall of the box body is further provided with a connecting flange, and a fixing hole is opened on the connecting flange. The connecting flange is used to fit together with the connecting flange of another box body, and a locking piece is inserted into the fixing hole.

Images