High-efficiency heat pipe stack photovoltaic power system

Abstract

The embodiment of the present application discloses a high-efficiency heat pipe stack thermal photovoltaic power system. A specific implementation of the high-efficiency heat pipe stack thermal photovoltaic power system includes: a heat source, a heat pipe, a radiator, a filter-photovoltaic wafer assembly, a heat dissipation system, a thermal insulation system, and a heat pipe reactor, wherein the thermal insulation system includes: a radiation reflection screen, a spacer layer, and an outermost thermal insulation layer; the radiation reflection screen and the spacer layer are alternately stacked, and the outermost layer covers the outermost thermal insulation layer; the heat pipe, the heat source, and the radiator exchange heat through heat conduction; the radiator and the filter-photovoltaic wafer assembly transfer energy through thermal radiation; and the filter-photovoltaic wafer assembly dissipates heat through the heat dissipation system. This implementation can provide a higher power energy supply and higher thermoelectric conversion efficiency for deep-sea detectors.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of deep-sea exploration power supply technology, and specifically to a high-efficiency heat pipe stack thermal photovoltaic power supply system. Background Art

[0002] As human beings' understanding of the earth deepens, the pace of human scientific research gradually extends from land to the ocean, and deep-sea exploration technology has attracted widespread attention worldwide. Traditional deep-sea exploration energy supply systems are mostly batteries or fuel cells, which cannot meet the requirements of long life, high mobility, and high power density power supply for detection equipment. As a power supply system using nuclear energy, the heat pipe stack thermal photovoltaic power supply system has significant advantages in life and power density. At the same time, in the existing technology of using nuclear energy for deep-sea exploration, there is almost no configuration that uses the heat pipe stack thermal photovoltaic system as a power source for deep-sea exploration systems. Therefore, the use of the heat pipe stack thermal photovoltaic system is an ideal choice for high-power, high-mobility deep-sea detectors. Summary of the invention

[0003] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0004] Some embodiments of the present application propose a high-efficiency heat pipe stack photovoltaic power supply system to solve one or more of the technical problems mentioned in the above background technology section.

[0005] Some embodiments of the present application provide a high-efficiency heat pipe stack thermal photovoltaic power system, which includes: a heat source, a heat pipe, a radiator, a filter-photovoltaic chip integration, a heat dissipation system, a thermal insulation system, and a heat pipe reactor, wherein the thermal insulation system includes: a radiation reflection screen, an interval layer, and an outermost thermal insulation layer; the radiation reflection screen and the interval layer are alternately stacked, and the outermost layer covers the outermost thermal insulation layer; the heat pipe, the heat source, and the radiator exchange heat through heat conduction; the radiator and the filter-photovoltaic chip integration transfer energy through thermal radiation; and the filter-photovoltaic chip integration dissipates heat through the heat dissipation system.

[0006] Optionally, the upper and lower bottom surfaces of the heat source body are regular hexagons, the sides are six rectangles of equal area, and holes with equal spacing are provided in the middle to facilitate cooperation with the heat pipe; the heat source body is made of non-metallic material with high thermal conductivity.

[0007] Optionally, the cladding material of the heat pipe is made of high temperature resistant and corrosion resistant metal; the internal working medium of the heat pipe is made of active metal with a large liquid phase transmission coefficient.

[0008] Optionally, the radiator is made of high temperature resistant and high stability metal.

[0009] Optionally, the radiator is adhered to the surface of the heat source by means of glue.

[0010] Optionally, the radiator is tightly attached to the surface of the heat source body by mechanical fitting.

[0011] Optionally, the filter-photoelectric wafer assembly comprises: a filter and a photoelectric wafer.

[0012] Optionally, the filter is directly attached to the surface of the optoelectronic wafer by bonding with high-temperature glue.

[0013] Optionally, the coating layer of the filter is directly deposited on the surface of the optoelectronic wafer.

[0014] Optionally, the heat dissipation system dissipates heat by adding metal fins on the outer surface.

[0015] Optionally, the heat dissipation system dissipates heat by cooperating with corresponding high thermal conductivity heat pipes.

[0016] Optionally, the heat source, the heat pipe and the radiator are tightly fitted under the condition of satisfying thermal expansion; and a gap is maintained between the radiator and the filter-optoelectronic wafer assembly.

[0017] Optionally, the radiation reflection screen is made of high temperature resistant metal, and the surface is mirror polished by polishing technology; the spacer layer and the outermost insulation layer are made of high temperature resistant and low thermal conductivity non-metal, and the thermal conductivity does not exceed 0.05W / (m·K).

[0018] The above-mentioned embodiments of the present application have the following beneficial effects: the present application utilizes the heat in the heat pipe reactor to convert thermal energy into electrical energy through a statically converted thermophotovoltaic mechanism, providing a higher power energy supply and higher thermoelectric conversion efficiency for deep-sea detectors. A thermophotovoltaic system overall structural configuration matching the heat pipe reactor is proposed, which does not require dynamic conversion components, has a smaller volume, and can better meet the miniaturization requirements of the detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other features, advantages and aspects of the embodiments of the present application will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that components and elements are not necessarily drawn to scale.

[0020] Figure 1It is a schematic diagram of the overall longitudinal cross-sectional structure of some embodiments of the high-efficiency heat pipe stack thermal photovoltaic power supply system according to the present application;

[0021] Figure 2 It is a schematic diagram of the longitudinal cross-sectional structure of some embodiments of the high-efficiency heat pipe stack thermal photovoltaic power supply system according to the present application;

[0022] Figure 3 is a schematic diagram of the transverse cross-sectional structure of some embodiments of the high-efficiency heat pipe stack thermal photovoltaic power supply system according to the present application;

[0023] Figure 4 It is a schematic diagram of the appearance structure of some embodiments of the high-efficiency heat pipe stack thermal photovoltaic power supply system according to the present application;

[0024] Figure 5 It is a side view structural schematic diagram of some embodiments of the thermal insulation system of the high-efficiency heat pipe stack photovoltaic power system according to the present application;

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of some embodiments of the spacing layer of the insulation system of the high-efficiency heat pipe stack photovoltaic power system according to the present application. DETAILED DESCRIPTION

[0026] Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present application. It should be understood that the drawings and embodiments of the present application are only for exemplary purposes and are not intended to limit the scope of protection of the present application.

[0027] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0028] It should be noted that the concepts such as "first" and "second" mentioned in this application are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0029] It should be noted that the modifications of "one" and "plurality" mentioned in the present application are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0030] The names of the messages or information exchanged between multiple devices in the embodiments of the present application are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0031] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0032] refer to Figure 1-Figure 4 As shown, Figure 1 The overall longitudinal cross-sectional structure schematic diagram of some embodiments of the high-efficiency heat pipe stack thermal photovoltaic power supply system according to the present application is shown. Figure 2 A schematic diagram of the longitudinal cross-sectional structure of some embodiments of a high-efficiency heat pipe stack thermal photovoltaic power supply system according to the present application is shown. Figure 3 Schematic diagrams of the transverse cross-sectional structures of some embodiments of the high-efficiency heat pipe stack thermal photovoltaic power supply system according to the present application are shown. Figure 4 FIG. 1 shows a schematic diagram of the appearance structure of some embodiments of the high-efficiency heat pipe stack photovoltaic power supply system according to the present application. Figure 1-Figure 4 As shown, the above-mentioned high-efficiency heat pipe thermal photovoltaic power system includes: a heat source body 1, a heat pipe 2, a radiator 3, a filter-photovoltaic wafer assembly 4, a heat dissipation system 5, a heat preservation system 6, a heat pipe reactor 7, and metal fins 8.

[0033] In some embodiments, the material of the heat source 1 is a material with high thermal conductivity. For example, the material of the heat source 1 is graphite. The heat source 1 is processed with 37 evenly arranged through holes. The heat pipe 2 and the heat source 1 are transitionally matched to make the two fit tightly under the premise of meeting the installation requirements. The working fluid in the heat pipe 2 is metallic lithium. The radiator 3 and the heat source 1 are tightly fitted by high-temperature glue or mechanical matching. For example, the material of the radiator 3 is metallic tungsten. The filter-photoelectric wafer assembly 4 is tightly fitted on the surface of the heat dissipation system 5. For example, the filter-photoelectric wafer assembly 4 is mechanically matched or adhered to the surface of the heat dissipation system 5 by high-temperature glue, silica gel, etc. The distance between the radiator 3 and the filter-photoelectric wafer assembly 4 is 15 mm. The thermal insulation system 6 covers the upper and lower surfaces of the heat dissipation system 5. The heat pipe 2 transfers the heat from the heat pipe reactor 7 to the heat source 1. The heat source 1 stores heat and heats up, and transfers the heat to the radiator 3 close to it, so that the radiator 3 is heated and emits light. The filter-photoelectric chip integrated body 4 receives the photons transmitted by the radiator 3, performs spectrum control and generates electricity. After the whole cycle is completed, the thermal energy is converted into electrical energy.

[0034] For example, the radiator 3 is bonded to the heat source 1 using a high temperature adhesive with a temperature resistance of more than 1000 degrees Celsius or attached to the surface of the heat source 1 using a matching structure, and the gap between the radiator 3 and the heat source 1 does not exceed 1 mm. The heat dissipation system 5 and the radiator 3 maintain a certain gap greater than 5 mm under the condition of satisfying heat dissipation.

[0035] Among them, reference Figure 5-Figure 6 , Figure 5 A side structural schematic diagram of some embodiments of the thermal insulation system of the high-efficiency heat pipe stack photovoltaic power system according to the present application is shown. Figure 6 The cross-sectional structure schematic diagram of some embodiments of the spacer layer of the insulation system of the high-efficiency heat pipe stack photovoltaic power system according to the present application is shown. Figure 5-Figure 6 As shown, the above-mentioned insulation system 6 includes: a radiation reflection screen 6-1, a spacer layer 6-2 and an outermost insulation layer 6-3. The above-mentioned radiation reflection screen 6-1 and the above-mentioned spacer layer 6-2 are alternately stacked, and the outermost layer covers the outermost insulation layer 6-3. The above-mentioned heat pipe 2, the above-mentioned heat source body 1 and the above-mentioned radiator 3 exchange heat through heat conduction. The above-mentioned radiator 3 and the above-mentioned filter-photoelectric wafer assembly 4 transfer energy through thermal radiation. The above-mentioned filter-photoelectric wafer assembly 4 dissipates heat through the above-mentioned heat dissipation system 5.

[0036] Therefore, the heat preservation system 6 is arranged in an alternating manner by using radiation reflection screens 6-1 and spacer layers 6-2, and the shape of the spacer layer is as follows: Figure 5 As shown, an outermost insulation layer 6-3 is arranged on the outermost layer, the material of the radiation reflection screen 6-1 is metal, and the material of the spacing layer 6-2 and the outermost insulation layer 6-3 is aerogel, thereby balancing radiation heat transfer and heat conduction and improving the insulation effect.

[0037] Optionally, the upper and lower bottom surfaces of the heat source body 1 are regular hexagons, the sides are six rectangles of equal area, and holes are arranged in the middle at equal intervals to facilitate cooperation with the heat pipe 2. The heat source body 1 is made of non-metallic material with high thermal conductivity.

[0038] Optionally, the cladding material of the heat pipe 2 is made of a high temperature resistant and corrosion resistant metal or alloy. The internal working medium of the heat pipe 2 is made of an active metal with a large liquid phase transmission coefficient.

[0039] Optionally, the radiator 3 is made of high temperature resistant and high stability metal or alloy.

[0040] Optionally, the radiator 3 is tightly attached to the surface of the heat source 1 by means of glue.

[0041] Optionally, the radiator 3 is tightly attached to the surface of the heat source 1 by mechanical fitting.

[0042] Optionally, the filter-photoelectric chip integrated body 4 comprises: a filter and a photoelectric chip.

[0043] Optionally, the filter is directly attached to the surface of the optoelectronic wafer by bonding with high-temperature glue.

[0044] Optionally, the coating layer of the filter is directly deposited on the surface of the optoelectronic wafer.

[0045] For example, a small photonic crystal filter is arranged on the surface of an optoelectronic wafer, and the size of a single filter-optoelectronic wafer combination is 1.1*1.6 cm or 2*2 cm. Another feasible arrangement is to arrange the optoelectronic wafers in an array, and arrange a large filter directly above the optoelectronic wafer. The filter size is the same as the single inner surface of the heat dissipation system, and the distance between the filter and the optoelectronic wafer does not exceed 5 mm.

[0046] Therefore, the filter-photovoltaic chip appears as an integrated body, and the filter is fixed to the surface of the photoelectric chip by high-temperature adhesive bonding, so that the internal space utilization of the device is improved. At the same time, the heat dissipation effect of the filter-photovoltaic chip integration is better than the distributed arrangement. This arrangement improves the heat dissipation effect.

[0047] Optionally, the heat dissipation system 5 dissipates heat by adding metal fins 8 on the outer surface.

[0048] Optionally, the heat dissipation system 5 dissipates heat by cooperating with corresponding high thermal conductivity heat pipes.

[0049] For example, the size of the cooling system is selected according to the actual power generation requirements.

[0050] For example, the heat dissipation system uses high thermal conductivity metal, and its outer surface is covered with metal fins 8 or adjustable heat pipe heat dissipation fins, and the fin height is determined comprehensively according to the distance between the heat dissipation system and the radiator module and the ocean conditions.

[0051] In the thermal photovoltaic power system, the heat dissipation system designed by the present invention is designed to enhance the heat dissipation capacity of the thermal photovoltaic power generation system under deep sea convection conditions, such as Figure 3As shown in the black dashed box. At the same time, in the deep sea environment, there is no light source, so traditional photovoltaic power generation cannot be realized, and chemical battery power generation also has the shortcoming of short service life. The use of nuclear energy can effectively solve the problem of chemical battery service life by taking advantage of the long service life of nuclear energy. From the perspective of energy source, controlled nuclear fission can release huge energy. After the heat is transferred to the thermal photovoltaic power system by heat pipes, the radiator with high emissivity in the infrared light band is used to convert the thermal energy into the light energy required in the thermal photovoltaic system, so as to achieve thermoelectric conversion and long-life power generation. From another perspective, the thermal photovoltaic power system is a static power generation system with no moving parts. The entire system is quiet and compact when working, which also meets the needs of deep-sea exploration. While meeting the miniaturization, it also meets the power generation requirements of the detector. It can be said that the entire power generation system is a power system for small deep-sea detectors designed for deep-sea exploration, which meets the needs of deep-sea exploration and solves the drawbacks of traditional power generation methods.

[0052] Optionally, the heat source 1, the heat pipe 2 and the radiator 3 are tightly fitted under the condition of satisfying thermal expansion. A gap is maintained between the radiator 3 and the filter-photoelectric wafer assembly 4.

[0053] For example, the actual gap distance between the radiator 3 and the filter-photovoltaic chip assembly 4 is selected according to the actual power and the heat dissipation system requirements. The number of heat pipes, the specific arrangement method, the shape and size of the heat source are selected according to the actual power generation requirements.

[0054] Optionally, the radiation reflection screen 6-1 is made of high temperature resistant metal or alloy, and the surface is mirror polished by polishing technology. The spacer layer 6-2 and the outermost insulation layer 6-3 are made of high temperature resistant and low thermal conductivity non-metal, and the thermal conductivity does not exceed 0.05W / (m·K) (watt / meter·degree).

[0055] For example, the working method of a high-efficiency heat pipe stack thermal photovoltaic power system can be: the heat pipe receives heat transferred from the heat pipe reactor, heats the heat source so that it transfers the heat to the surface of the radiator, the radiator emits light outward due to the heat, and the photons are modulated by the filter and act on the surface of the photoelectric chip. The photoelectric chip produces a photoelectric effect and outputs electrical energy, and the electrical energy is transmitted to the outside of the high-efficiency heat pipe stack thermal photovoltaic power system through the leads.

[0056] The above-mentioned embodiments of the present application have the following beneficial effects: the present application utilizes the heat in the heat pipe reactor to convert thermal energy into electrical energy through a statically converted thermophotovoltaic mechanism, providing a higher power energy supply and higher thermoelectric conversion efficiency for deep-sea detectors. And a thermophotovoltaic system overall structural configuration matching the heat pipe reactor is proposed, which does not require dynamic conversion components, has a smaller volume, and can better adapt to the miniaturization requirements of the detector. The high-efficiency heat pipe stack thermophotovoltaic power supply system mentioned in the present application is mainly divided into a heat pipe stack module and a thermophotovoltaic conversion power generation module. As an energy source, the heat pipe stack module releases heat through fission reaction and is sent to the thermophotovoltaic power generation system under the condition of heat pipe heat transfer. The heat pipe stack module can participate in the convective heat exchange of seawater under the condition of designing a shielding shell. The present invention only schematically describes the heat pipe stack module, and the main goal is to explain the innovative design of the thermophotovoltaic system combined with the heat pipe stack module in the deep sea.

[0057] The above description is only some preferred embodiments of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present application is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above invention concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present application to form a technical solution.

Claims

1. A high-efficiency heat pipe thermal photovoltaic power system, applied in the field of deep sea exploration, characterized in that: The high-efficiency heat pipe thermal photovoltaic power system comprises: a heat source, a heat pipe, a radiator, a filter-photovoltaic wafer integrated body, a heat dissipation system, a heat preservation system, and a heat pipe reactor, wherein: The thermal insulation system comprises: a radiation reflection screen, a spacing layer and an outermost thermal insulation layer; The radiation reflection screens and the spacer layers are arranged in an alternating stacked manner, with the outermost layer covering the outermost insulation layer; The heat pipe, the heat source and the radiator exchange heat through heat conduction; The radiator and the filter-photoelectric wafer assembly transfer energy by means of thermal radiation; The filter-photoelectric wafer assembly is cooled by the cooling system; Wherein, the filter-photoelectric wafer integrated body comprises: a filter, a photoelectric wafer; The filter is directly attached to the surface of the optoelectronic wafer by bonding with high-temperature glue; The coating layer of the filter is directly deposited on the surface of the optoelectronic wafer, and a small piece of photonic crystal filter is arranged on the surface of one optoelectronic wafer; The heat dissipation system dissipates heat by adding metal fins on the outer surface, wherein the heat dissipation system uses high thermal conductivity metal, and its outer surface is covered with metal fins; The heat dissipation system dissipates heat by cooperating with corresponding high thermal conductivity heat pipes; Wherein, the heat source, the heat pipe and the radiator are tightly fitted under the condition of satisfying thermal expansion; A gap is maintained between the radiator and the filter-photoelectric wafer assembly; Among them, heat pipe reactors release heat through controlled nuclear fission; The heat pipe transfers the heat from the heat pipe reactor to the heat source body, and the heat source body accumulates heat and increases in temperature, and transfers the heat to the radiator closely attached to it.

2. The high-efficiency heat pipe thermal photovoltaic power system according to claim 1 is characterized in that: The upper and lower bottom surfaces of the heat source body are regular hexagons, and the sides are six rectangles of equal area, with holes at equal intervals in the middle to facilitate cooperation with the heat pipe; The heat source body is made of non-metallic material with high thermal conductivity.

3. The high-efficiency heat pipe thermal photovoltaic power system according to claim 1 is characterized in that: The cladding material of the heat pipe is made of high temperature resistant and corrosion resistant metal; The internal working medium of the heat pipe is an active metal with a large liquid phase transmission coefficient.

4. The high-efficiency heat pipe thermal photovoltaic power system according to claim 1, characterized in that: The radiator is made of high temperature resistant and high stability metal.

5. The high-efficiency heat pipe thermal photovoltaic power system according to claim 1, characterized in that: The radiator is tightly attached to the surface of the heat source body by means of adhesive.

6. The high-efficiency heat pipe thermal photovoltaic power system according to claim 1, characterized in that: The radiator is tightly attached to the surface of the heat source body by mechanical matching.

7. The high-efficiency heat pipe thermal photovoltaic power system according to claim 1, characterized in that: The radiation reflection screen is made of high temperature resistant metal, and the surface is mirror polished by polishing technology; The spacer layer and the outermost heat-insulating layer are made of non-metal with high temperature resistance and low thermal conductivity, and the thermal conductivity thereof does not exceed 0.05 W / (m·K).

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