Thermal energy recovery assembly and apparatus having thermal energy recovery assembly

Abstract

The utility model provides a heat energy recovery assembly and a device with the heat energy recovery assembly, the heat energy recovery assembly comprises a heat conducting plate and a thermoelectric conversion module, the heat conducting plate comprises a heat conducting layer, an insulating layer and a shell which are sequentially laminated from inside to outside along the thickness direction of the heat conducting plate, and the heat conducting layer is made of heat conducting materials. The side, away from the insulating layer, of the heat conduction layer is provided with a heat production device installation position, the thermoelectric conversion module is arranged on the heat conduction plate and comprises a hot end and a cold end, the hot end is connected with the heat conduction layer, the cold end is exposed out of the heat conduction plate, the hot end is connected with a hot end outgoing line, and the cold end is connected with a cold end outgoing line. The heat energy recovery assembly can utilize heat radiation energy of the heat production device, and energy reutilization is achieved.

Description

Technical Field

[0001] This utility model relates to the field of heat energy recovery equipment, specifically, to a heat energy recovery component and a device having the heat energy recovery component. Background Technology

[0002] Air source heat pump water heaters heat water by absorbing heat from the air. During the compression process, the refrigerant generates high temperatures. The thermal radiation energy of this high-temperature refrigerant is usually not effectively utilized and is wasted, resulting in energy waste.

[0003] There is a method to recover heat from the outdoor unit of an air conditioner, but it cannot be used in water heaters where the outdoor unit is not cooling.

[0004] Another method for recovering waste heat is by absorbing the temperature from wastewater, but it is only suitable for environments with large amounts of wastewater, such as bathhouses, and not for air conditioning-powered water heaters. Utility Model Content

[0005] The primary objective of this invention is to provide a heat recovery component that can utilize the thermal radiation energy of a heat-generating device to achieve energy reuse.

[0006] The second objective of this invention is to provide a device having the aforementioned heat recovery components.

[0007] To achieve the aforementioned first objective, this utility model provides a heat recovery component, comprising: a heat-conducting plate, the heat-conducting plate including a heat-conducting layer, an insulating layer, and a shell arranged sequentially from the inside to the outside along the thickness direction of the heat-conducting plate, the heat-conducting layer being made of a heat-conducting material, and a heat-generating device mounting position being provided on the side of the heat-conducting layer away from the insulating layer; and a thermoelectric conversion module, the thermoelectric conversion module being disposed on the heat-conducting plate, the thermoelectric conversion module including a hot end and a cold end, the hot end being connected to the heat-conducting layer, the cold end being exposed on the heat-conducting plate, the hot end being connected to a hot end lead wire, and the cold end being connected to a cold end lead wire.

[0008] As can be seen from the above scheme, by installing the heat recovery component of this utility model onto the heat generation device, the heat-conducting layer is used to transfer heat to the hot end of the thermoelectric conversion module. Outside the heat-conducting layer is an insulating layer used to prevent heat loss and provide electrical insulation, ensuring efficient utilization of heat energy. The outermost shell protects the entire heat recovery component from the influence of the external environment. The hot-end and cold-end leads of the thermoelectric conversion module are used to connect to and supply power to electrical components, and can also connect to a power storage module. When the heat generation device operates and radiates heat outwards, the emitted heat is absorbed by an absorption layer such as graphene, which has high efficiency in absorbing heat radiation, and then conducted to the hot end of the thermoelectric conversion module through the heat conduction layer, raising its temperature and creating a temperature difference with the cold end in the air, thereby generating current. The electricity is then transmitted to the power storage module through a circuit composed of the cold-end and hot-end leads, and can be controlled by a controller to supply power to components such as electric heaters or temperature sensors in water heaters. Therefore, the heat recovery component provided by this utility model aims to achieve energy reuse and improve the overall energy efficiency of the system by efficiently collecting these thermal radiation energies and converting them into electrical energy.

[0009] In a preferred embodiment, the thermally conductive layer comprises an absorption layer, a substrate, and a thermally conductive layer stacked sequentially from the inside to the outside along the thickness direction of the thermally conductive plate, with the hot end connected to the thermally conductive layer.

[0010] It can be seen that the absorption layer is used to absorb the heat radiation emitted by the heat generation device, the substrate can support the absorption layer and provide mechanical strength and heat conduction path, and the heat conduction layer on the outside of the substrate is used to quickly conduct the heat absorbed by the absorption layer to the thermoelectric conversion module.

[0011] A further option is that the absorbent layer is made of carbon-based material, metal material or ceramic material; and / or the substrate is made of metal material, ceramic material or composite material; and / or the thermally conductive layer is made of metal material, graphite material or phase change material; and / or the insulating layer is made of aerogel, foam material or ceramic fiber.

[0012] A preferred embodiment is that the surface of the heat-conducting plate is provided with a heat-insulating layer.

[0013] A further option is to use ceramic fiber as the material for the insulation layer.

[0014] It can be seen that the ceramic fibers placed on the surface of the heat-conducting plate are used to insulate heat.

[0015] A preferred embodiment is that there are two or more thermoelectric conversion modules, which are arranged at intervals along the extension direction of the heat-conducting plate.

[0016] Therefore, multiple thermoelectric conversion modules can be set up to increase the amount of electricity generated.

[0017] A preferred embodiment is that the cold end is provided with a cooling component; and / or the cold end is located outside the heat-conducting plate.

[0018] Therefore, by placing the cold end on the outside of the heat-conducting plate and / or by installing a cooling component at the cold end, the temperature of the cold end can be lowered, thereby increasing the generated electricity by increasing the temperature difference. The cooling component can be a fan, etc.

[0019] A preferred embodiment is that the heat-conducting plate has a receiving groove that extends inward from the outer surface of the outer shell to the heat conduction layer along the thickness direction of the heat-conducting plate, and the thermoelectric conversion module is disposed in the receiving groove.

[0020] Therefore, the accommodating slot is used to accommodate the thermoelectric conversion module and ensure the stability of the thermoelectric conversion module installation.

[0021] A preferred embodiment is that the heat-conducting plate is an open ring; an upper cover plate and a lower cover plate are respectively provided at both ends of the heat-conducting plate along the thickness direction of the heat-conducting plate.

[0022] Therefore, designing the heat-conducting plate as an open ring serves two purposes: firstly, it allows the heat recovery components to be mounted on the heat-generating device, and secondly, it provides space for other components on the heat-generating device, preventing interference.

[0023] A further embodiment is that the outer surface of the heat-conducting plate is also provided with support columns and baffles. Both the support columns and baffles extend along the axial direction of the heat-conducting plate. The baffles are located at the opening of the heat-conducting plate. Both the baffles and support columns extend outward from the outer surface of the heat-conducting plate along the thickness direction. The two ends of the baffles and the two ends of the support columns are respectively connected to the upper cover plate and the lower cover plate.

[0024] It can be seen that the overall strength of the heat-conducting plate can be improved by setting up the upper cover plate, lower cover plate, support column and baffle. The baffle mainly serves to isolate heat inside the heat-conducting plate and to fix it in place. The support column mainly serves to support the entire heat recovery component and improve its strength.

[0025] A further option is to provide a wire-passing hole in at least one of the upper and lower cover plates. The wire-passing hole extends through the corresponding cover plate along its thickness direction, and the hot-end lead wire and the cold-end lead wire pass through the corresponding wire-passing hole respectively.

[0026] Therefore, by opening wire-passing holes on the upper and / or lower cover plates, the lead wires can be sorted and guided.

[0027] In a preferred embodiment, the heat recovery component also includes a power storage module, with both the hot-end lead and the cold-end lead electrically connected to the power storage module.

[0028] Therefore, it can be seen that the generated electrical energy can be stored by setting up a power storage module.

[0029] To achieve the second objective mentioned above, this utility model provides a device with a heat recovery component, including a heat generation device body and the aforementioned heat recovery component, wherein the heat generation device body is located at the heat generation device mounting position.

[0030] A preferred embodiment is that the main body of the heat generation device includes a heat exchanger and a water tank liner, with the heat exchanger wrapped around the outer peripheral wall of the water tank liner and the heat recovery component fitted around the heat exchanger.

[0031] Therefore, by mounting the heat recovery components outside the heat exchanger, it is easy to reuse the heat radiated outward by the heat exchanger.

[0032] A further option is to have a heat exchanger with an inlet and an outlet, with the heat recovery component positioned near the inlet.

[0033] Therefore, placing the heat recovery component in the high-temperature section of the heat exchanger can more effectively utilize the radiated heat. Attached Figure Description

[0034] Figure 1 This is a structural diagram of an embodiment of the device with a heat recovery component according to the present invention.

[0035] Figure 2 This is a first-view cross-sectional view of an embodiment of the device with a heat recovery component according to the present invention.

[0036] Figure 3 This is a cross-sectional view from a second perspective of an embodiment of the device with a heat recovery component according to the present invention.

[0037] Figure 4 This is a perspective view of an embodiment of the heat recovery component of this utility model.

[0038] Figure 5 This is a front view of an embodiment of the heat recovery component of this utility model.

[0039] Figure 6 This is a cross-sectional view of an embodiment of the heat recovery component of this utility model.

[0040] Figure 7 yes Figure 6 A magnified view of a portion of point A in the middle.

[0041] Figure 8 This is a bottom view of an embodiment of the heat recovery component of this utility model.

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0043] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present invention or its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0044] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0045] In this invention, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not exist between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may not be directly connected to the other devices but may have an intermediary device.

[0046] All terms used in this invention (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having the meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0047] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0048] See Figures 1 to 3 In this embodiment, the device with heat recovery component 2 is an air source water heater, which includes a heat generation device body 1 and a heat recovery component 2.

[0049] The main body 1 of the heat generation device includes a heat exchanger 11 and a water tank liner 12. In this embodiment, the heat exchanger 11 is a parallel flow heat exchanger 11. The heat exchanger 11 is wound around the outer peripheral wall of the water tank liner 12. The heat recovery component 2 is sleeved on the outside of the heat exchanger 11. The heat exchanger 11 includes an inlet end and an outlet end. The heat recovery component 2 is set close to the inlet end, that is, the heat recovery component 2 is set in the high temperature section of the heat exchanger 11, so as to more effectively utilize the radiated heat.

[0050] See Figures 3 to 6 The heat recovery component 2 includes a heat-conducting plate 3, a thermoelectric conversion module 4, and a power storage module (not shown). The heat-conducting plate 3 is an open ring. An upper cover plate 31 and a lower cover plate 32 are respectively provided at both ends of the axial direction of the heat-conducting plate 3. Both the upper cover plate 31 and the lower cover plate 32 extend along the thickness direction of the heat-conducting plate 3. A support column 33 and a baffle 34 are also provided on the outer surface of the heat-conducting plate 3. Both the support column 33 and the baffle 34 extend along the axial direction of the heat-conducting plate 3. The baffle 34 is located at the opening of the heat-conducting plate 3. Both the baffle 34 and the support column 33 extend outward from the outer surface of the heat-conducting plate 3 along the thickness direction of the heat-conducting plate 3. Both ends of the baffle 34 and both ends of the support column 33 are respectively connected to the upper cover plate 31 and the lower cover plate 32. The overall strength of the heat-conducting plate 3 can be improved by setting up the upper cover plate 31, the lower cover plate 32, the support column 33 and the baffle 34. The baffle 34 mainly serves to isolate heat inside the heat-conducting plate 3 and to fix it in place. The support column 33 mainly serves to support the entire heat recovery component 2 and improve its strength.

[0051] See Figure 7 The heat-conducting plate 3 includes an absorption layer 36, a substrate 37, a heat-conducting layer 38, an insulating layer 39, and a shell 35, which are stacked sequentially from the inside to the outside along the thickness direction of the heat-conducting plate 3. Adjacent layers are fixedly connected by welding. The upper cover plate 31, the lower cover plate 32, the support column 33, and the baffle 34 are all fixed to the shell 35 by welding to form an integral structure, and all are made of stainless steel. The absorption layer 36, the substrate 37, and the heat-conducting layer 38 together form the heat-conducting layer, which is made of a heat-conducting material.

[0052] A heat generation device mounting position 30 is provided on the radial inner side of the absorption layer 36, and the main body 1 of the heat generation device is located at the heat generation device mounting position 30.

[0053] Preferably, the absorber layer 36 is made of a carbon-based material, a metallic material, or a ceramic material. Among the carbon-based materials, graphene, carbon nanotubes, or carbon fibers can be selected. Graphene has excellent heat absorption properties, carbon nanotubes have high thermal conductivity, good heat absorption properties, and are lightweight, while carbon fibers have high strength and good heat absorption properties. Among the metallic materials, copper, aluminum, and nickel can be selected, and among the ceramic materials, titanium dioxide, alumina, and aluminum nitride can be selected.

[0054] The substrate 37 is made of a thermally conductive material, which can be a metal, ceramic, or composite material. Among the metal materials, copper, aluminum, or stainless steel can be selected. Among the ceramic materials, alumina, aluminum nitride, or silicon carbide can be selected. Among the composite materials, metal-ceramic composites and metal-polymer composites can be selected. Metal-ceramic composites combine the advantages of metals and ceramics, exhibiting high thermal conductivity and temperature resistance. Metal-polymer composites combine the advantages of metals and polymers, possessing good mechanical properties and lightweight characteristics.

[0055] The heat-conducting layer 38 can be made of metal, graphite, or a phase change material. Metals such as copper, aluminum, or silver can be selected. Graphite materials such as graphite sheets or graphene can be selected. Phase change materials such as paraffin wax or metal alloys can be selected; among metal alloys, tin-bismuth alloys have high latent heat and good thermal stability.

[0056] The insulating layer 39 is made of aerogel, foam material, or ceramic fiber. Among the aerogels, silica aerogel or carbon aerogel can be selected. Silica aerogel has extremely low thermal conductivity and is lightweight, while carbon aerogel has high thermal conductivity and good insulation properties. Among the foam materials, polyurethane foam or polyethylene foam can be selected. Among the ceramic fibers, alumina fiber or aluminum silicate fiber can be selected.

[0057] The surface of the heat-conducting plate 3 is provided with a heat insulation layer (not shown), and the surfaces of the upper cover plate 31, lower cover plate 32, support column 33 and baffle 34 are also covered with a heat insulation layer. Preferably, the material of the heat insulation layer is ceramic fiber, which is used to insulate heat.

[0058] The thermoelectric conversion module 4 is disposed on the heat-conducting plate 3. The heat-conducting plate 3 has a receiving groove 301. The receiving groove 301 extends inward from the outer surface of the outer shell 35 to the heat conduction layer 38 along the thickness direction of the heat-conducting plate 3. The thermoelectric conversion module 4 is disposed in the receiving groove 301 and is interference-fitted with the corresponding receiving groove 301. The receiving groove 301 is used to accommodate the thermoelectric conversion module 4 and ensure the stability of the installation of the thermoelectric conversion module 4.

[0059] The thermoelectric conversion module 4 includes a hot end 41 and a cold end 42. The hot end 41 is connected to the heat conduction layer 38, and the cold end 42 is exposed outside the heat conduction plate 3. The hot end 41 is connected to a hot end lead wire (not shown), and the cold end 42 is connected to a cold end lead wire (not shown). Both the hot end lead wire and the cold end lead wire are electrically connected to the power storage module. There are two or more thermoelectric conversion modules 4, and each thermoelectric conversion module 4 is arranged at intervals along the extension direction of the heat conduction plate 3.

[0060] See Figure 4 and Figure 8Both the upper cover plate 31 and the lower cover plate 32 have wire-passing holes 302. The wire-passing holes 302 penetrate the corresponding cover plates along the thickness direction. The hot end lead wire and the cold end lead wire pass through the corresponding wire-passing holes 302 respectively to achieve the sorting and guidance of the lead wires.

[0061] When the water heater is heating, the heated high-temperature refrigerant gas flows from the upper end to the lower end of the parallel flow heat exchanger 11. The refrigerant temperature at the heat recovery component 2 is 90°C. The heat it emits is absorbed by the graphene absorption layer 36, which has high efficiency in absorbing heat radiation, and is conducted to the hot end 41 of the thermoelectric conversion module 4 through the heat conduction layer 38, raising its temperature and creating a temperature difference with the cold end 42 in the air, thereby generating current. The electricity is transmitted to the power storage module through the circuit composed of the cold end lead wire and the hot end lead wire, and can be controlled by the controller to supply power to components such as the electric heating element or temperature sensor of the water heater.

[0062] As can be seen from the above, by installing the heat recovery component of this utility model onto the heat generation device, the absorption layer is used to absorb the heat radiation emitted by the heat generation device. The substrate supports the absorption layer and provides mechanical strength and a heat conduction path. The heat conduction layer on the outside of the substrate is used to quickly conduct the heat absorbed by the absorption layer to the thermoelectric conversion module. Outside the heat conduction layer is an insulating layer used to prevent heat loss and provide electrical insulation, ensuring the efficient utilization of heat energy. The outermost shell is used to protect the entire heat recovery component from the influence of the external environment. The hot end lead and cold end lead of the thermoelectric conversion module are used to connect to and supply power to the electrical components, and can also be connected to a power storage module. The heat recovery component provided by this utility model aims to achieve energy reuse by efficiently collecting this heat radiation energy and converting it into electrical energy, thereby improving the overall energy efficiency of the system, reducing energy waste, and having significant economic and environmental benefits.

[0063] In addition, cooling components such as fans can be installed at the cold end to cool it down. The number of thermoelectric conversion modules can be one or more. The arrangement of the thermoelectric conversion modules on the heat-conducting plate can be changed as needed. Only one of the upper and lower cover plates may have a wiring hole. The device with heat recovery components can also be an air conditioner, and the main body of the heat-generating device can be a compressor or a condenser. The above modifications can also achieve the purpose of this utility model.

[0064] Finally, it should be emphasized that the above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. 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 heat energy recovery component, characterized in that, include: A heat-conducting plate, comprising a heat-conducting layer, an insulating layer, and a shell arranged sequentially from the inside to the outside along the thickness direction of the heat-conducting plate; the heat-conducting layer is made of a heat-conducting material; and a heat-generating device mounting position is provided on the side of the heat-conducting layer away from the insulating layer. A thermoelectric conversion module is disposed on the heat-conducting plate. The thermoelectric conversion module includes a hot end and a cold end. The hot end is connected to the heat-conducting layer, and the cold end is exposed on the heat-conducting plate. The hot end is connected to a hot end lead wire, and the cold end is connected to a cold end lead wire.

2. The heat recovery component according to claim 1, characterized in that: The thermally conductive layer includes an absorption layer, a substrate, and a thermally conductive layer stacked sequentially from the inside to the outside along the thickness direction of the thermally conductive plate, and the hot end is connected to the thermally conductive layer.

3. The heat recovery component according to claim 2, characterized in that: The absorbent layer is made of carbon-based materials, metallic materials, or ceramic materials; and / or The substrate is made of a metallic material, a ceramic material, or a composite material; and / or The material of the heat-conducting layer is a metallic material, a graphite material, or a phase change material; and / or The insulating layer is made of aerogel, foam material, or ceramic fiber.

4. The heat recovery component according to claim 2, characterized in that: The heat-conducting plate has a receiving groove that extends inward from the outer surface of the outer shell to the heat conduction layer along the thickness direction of the heat-conducting plate, and the thermoelectric conversion module is disposed in the receiving groove.

5. The heat recovery assembly according to any one of claims 1 to 4, characterized in that: The surface of the heat-conducting plate is provided with a heat insulation layer.

6. The heat recovery component according to claim 5, characterized in that: The insulation layer is made of ceramic fiber.

7. The heat recovery assembly according to any one of claims 1 to 4, characterized in that: The number of thermoelectric conversion modules is two or more, and each thermoelectric conversion module is arranged at intervals along the extension direction of the heat-conducting plate.

8. The heat recovery assembly according to any one of claims 1 to 4, characterized in that: The cold end is provided with a cooling component; and / or The cold end is located outside the heat-conducting plate.

9. The heat recovery assembly according to any one of claims 1 to 4, characterized in that: The heat-conducting plate is in the shape of an open ring; The heat-conducting plate has an upper cover plate and a lower cover plate at its two ends along its axial direction, and both the upper cover plate and the lower cover plate extend along the thickness direction of the heat-conducting plate.

10. The heat recovery component according to claim 9, characterized in that: The outer surface of the heat-conducting plate is also provided with a support column and a baffle. The support column and the baffle both extend along the axial direction of the heat-conducting plate. The baffle is located at the opening of the heat-conducting plate. The baffle and the support column both extend outward from the outer surface of the heat-conducting plate along the thickness direction of the heat-conducting plate. The two ends of the baffle and the two ends of the support column are respectively connected to the upper cover plate and the lower cover plate.

11. The heat recovery component according to claim 9, characterized in that: At least one of the upper cover plate and the lower cover plate is provided with a wire-passing hole, which penetrates the corresponding cover plate along the thickness direction, and the hot end lead wire and the cold end lead wire pass through the corresponding wire-passing hole respectively.

12. The heat recovery assembly according to any one of claims 1 to 4, characterized in that: The heat recovery component also includes a power storage module, and both the hot end lead and the cold end lead are electrically connected to the power storage module.

13. A device having a heat recovery component, characterized in that, It includes a heat-generating device body and a heat recovery component as described in any one of claims 1 to 12, wherein the heat-generating device body is located at the heat-generating device mounting position.

14. The device with a heat recovery component according to claim 13, characterized in that: The main body of the heat generation device includes a heat exchanger and a water tank liner. The heat exchanger is wrapped around the outer peripheral wall of the water tank liner, and the heat recovery component is sleeved on the outside of the heat exchanger.

15. The device with a heat recovery component according to claim 14, characterized in that: The heat exchanger includes an inlet end and an outlet end, and the heat recovery component is disposed near the inlet end.

Images