CN112886869B - Thermoelectric heat energy conversion device and thermoelectric heat system - Google Patents
Thermoelectric heat energy conversion device and thermoelectric heat system Download PDFInfo
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- CN112886869B CN112886869B CN202110284045.6A CN202110284045A CN112886869B CN 112886869 B CN112886869 B CN 112886869B CN 202110284045 A CN202110284045 A CN 202110284045A CN 112886869 B CN112886869 B CN 112886869B
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- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Abstract
The invention discloses a thermoelectric heat energy conversion device and a thermoelectric heat energy system, wherein the thermoelectric heat energy conversion device comprises a shell and a thermoelectric element, the shell is limited with a heat storage cavity and a cooling cavity, a heat accumulator is arranged in the heat storage cavity, and the heat accumulator is used for receiving and storing heat from tail gas; a cooling body and a heat transfer medium pipeline in contact with the cooling body are arranged in the cooling cavity, and the heat transfer medium pipeline is in fluid communication with a cooling medium source; the thermoelectric element is disposed between the thermal storage cavity and the cooling cavity and configured to generate electrical energy at a temperature differential from the thermal storage body and the cooling body; the thermoelectric heat energy conversion device and the thermoelectric heat energy conversion system can form high and stable temperature difference between the hot end and the cold end of the thermoelectric element, thereby ensuring high thermoelectric conversion efficiency.
Description
Technical Field
The invention relates to the technical field of thermoelectric conversion of internal combustion engine exhaust, in particular to a thermoelectric thermal energy conversion device and a thermoelectric thermal system.
Background
The ship waste heat is mainly heat discharged from tail gas of a diesel engine, the heat equivalent of the effective work of the ship diesel engine accounts for about 30-40% of the combustion heat productivity of fuel, the energy discharged in the form of waste heat is equivalent to the effective work, and the part of heat is directly discharged into the atmosphere, so that huge energy loss is caused.
When energy is converted, the total conversion efficiency is the product of the conversion efficiency of each link, and the more the conversion links or processes, the lower the total efficiency. Therefore, in order to improve the energy conversion efficiency, the intermediate energy conversion links should be reduced. For example, thermoelectric power generation mainly forms temperature difference between a hot end and a cold end of a thermoelectric material, and utilizes the seebeck effect to directly convert heat energy into electric energy. The larger and more stable the temperature difference between the hot side of the thermoelectric element and the cooling temperature, the higher the thermoelectric conversion efficiency. As can be seen from the above analysis, in thermoelectric power generation, the larger the temperature difference between the hot end of the thermoelectric element and the cooling temperature, the more stable the temperature difference, and the higher the thermoelectric conversion efficiency.
Although the tail gas quantity of the marine diesel engine is huge, the temperature is also higher, for example, the tail gas temperature of the medium and high speed engine can reach 300-. However, in the sailing process of the ship, the tail gas amount and the tail gas temperature of the diesel engine during variable load operation fluctuate greatly, the temperature difference fluctuation of the cold end and the hot end of the thermoelectric element is large, the generated power density difference of the power supply is large, and the thermoelectric conversion efficiency is low.
Currently, the conventional thermoelectric heat energy conversion devices are generally classified into two types. The first conversion device is to attach the hot end of the thermoelectric element directly to the exhaust pipeline, and the cold end of the thermoelectric element is cooled by air, which is generally used in many vehicles. Because the tail gas quantity and the tail gas temperature of the diesel engine are unstable, the cooling effect of air is poor, and the thermoelectric conversion efficiency of the device is low and unstable. The second conversion device is a thermoelectric system which adds a heat energy conversion device of an intermediate heat transfer medium and serves as a thermoelectric element, namely, heat is transferred to the heat transfer medium through heat transfer between tail gas and the heat transfer medium. Although the second conversion device can avoid the influence of the temperature fluctuation of the tail gas to a certain extent, the heat transfer efficiency is reduced due to the existence of the intermediate heat transfer medium, the hot end of the thermoelectric element and the cold end of the thermoelectric element cannot form high temperature difference, and the thermoelectric conversion efficiency of the devices is generally lower.
Therefore, it is desirable to provide a thermoelectric thermal energy conversion device and a thermoelectric thermal system to solve the above technical problems.
Disclosure of Invention
The main object of the present invention is to provide a thermoelectric thermal energy conversion device and a thermoelectric thermal system, which can ensure high thermoelectric conversion efficiency by utilizing a high and stable temperature difference formed between the hot side and the cold side of a thermoelectric element.
In order to achieve the above object, according to one aspect of the present invention, there is provided a thermoelectric thermal energy conversion device for converting thermal energy of exhaust gas of a host machine at least partially into electric energy, comprising a housing and a thermoelectric element disposed in the housing, the housing defining a heat storage cavity and a cooling cavity, wherein a heat storage body is disposed in the heat storage cavity, the exhaust gas of the host machine flows through the heat storage cavity, and the heat storage body is configured to receive heat from the exhaust gas and store the heat; a cooling body and a heat transfer medium pipeline which is in contact with the cooling body are arranged in the cooling cavity, and the heat transfer medium pipeline is in fluid communication with a cooling medium source and is used for cooling the cooling body; the thermoelectric element is disposed between the thermal storage cavity and the cooling cavity and configured to generate electrical energy at a temperature differential from the thermal storage body and the cooling body.
In some embodiments, the thermal storage chamber has a first heat transfer wall and the cooling chamber has a second heat transfer wall; the thermoelectric element has a hot side contacting the first heat transfer wall and a cold side contacting the second heat transfer wall.
In some embodiments, a nano-insulation material is further disposed between the first heat transfer wall and the second heat transfer wall, and the nano-insulation material is filled between the thermoelectric elements.
In some embodiments, the first heat transfer wall and the second heat transfer wall are disposed spaced apart within the cavity of the housing, and: the first heat transfer wall and the housing together define the heat storage chamber; the second heat transfer wall and the housing together define the cooling cavity.
In some embodiments, the top of the housing is provided with an air inlet and an air outlet in fluid communication with the heat storage chamber, and the air inlet is in communication with an exhaust gas pipeline of the host.
In some embodiments, the bottom of the housing is provided with a water inlet through which the heat transfer medium line is in fluid communication with a cooling line of the host machine and a water outlet through which the heat transfer medium line is in fluid communication with the water outlet.
In some embodiments, the thermal mass directly contacts a surface of the first heat transfer wall.
In some embodiments, a gap between the thermal mass and the first heat transfer wall is filled with a highly thermally conductive medium.
In some embodiments, the cooling body directly contacts the second heat transfer wall.
In some embodiments, the thermoelectric element is secured to the second heat transfer wall by a clip.
In some embodiments, the materials of the first and second heat transfer walls are independently copper and stainless steel, respectively.
In some embodiments, the cooling body is a thermal oil.
According to another aspect of the present invention, there is also provided a thermoelectric system comprising any one of the thermoelectric thermal energy conversion devices.
In some embodiments, the thermoelectric system further comprises a host tail gas pipeline, a host cooling pipeline, and a power management module; wherein the host exhaust line is in fluid communication with the thermal storage cavity; the host cooling line is in fluid communication with the heat transfer medium line; the power management module is electrically connected with the thermoelectric element.
The host machine is, for example, a marine diesel engine.
Compared with the prior art, the thermoelectric heat energy conversion device and the thermoelectric system have the advantages that the heat accumulator is arranged in the heat accumulation cavity, and the cooling body and the heat transfer medium pipeline are filled in the cooling cavity, so that the stability of the hot end temperature, the cold end temperature and the cold and hot end temperature difference of the thermoelectric element can be ensured; the tail gas directly flows through the heat accumulator and the first heat transfer wall is directly contacted with the heat accumulator and the hot end of the thermoelectric element, so that the energy conversion link or process can be saved, the heat in the tail gas is stably output to the hot end of the thermoelectric element, and the thermoelectric conversion efficiency is improved; the nanometer heat insulation material is arranged between the first heat transfer wall and the second heat transfer wall, so that direct heat transfer between the heat storage cavity and the cooling cavity can be prevented, and heat loss is reduced; in addition, by directly contacting the second heat transfer wall with the cooling body and the cold end of the thermoelectric element, the cold end can be stably maintained at a low temperature, thereby ensuring high thermoelectric conversion efficiency.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
Fig. 1 is a schematic structural diagram of the thermoelectric heat energy conversion device according to the present invention.
Fig. 2 is a schematic view of a thermoelectric element according to the present invention.
The reference numbers in the above figures are as follows:
1 casing 101 air inlet
102 air outlet 103 water outlet
104 water inlet 10 heat accumulation cavity
11 heat accumulator 12 first heat transfer wall
20 cooling chamber 21 cooling body
22 second heat transfer wall 23 heat exchange medium line
30 hot side of thermoelectric element 31
32 cold end 40 nanometer thermal insulation material
50 clamping piece
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. Furthermore, the embodiments described in the detailed description are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of the thermoelectric heat energy conversion device according to the present invention. Fig. 2 is a schematic view of a thermoelectric element according to the present invention.
As shown in fig. 1, the present invention provides a thermoelectric thermal-electric conversion device comprising a housing 1, the housing 1 defining at least a heat storage cavity 10 and a cooling cavity 20 and a thermoelectric conversion chamber between the heat storage cavity 10 and the cooling cavity 20.
For example, as shown in fig. 1, in the present embodiment, the heat accumulation chamber 10, the thermoelectric conversion chamber, and the cooling chamber 20 are stacked in the vertical direction. In other embodiments, the cooling cavity 20 may also be arranged around the periphery of the thermoelectric conversion chamber, and the thermoelectric conversion chamber is arranged around the periphery of the heat storage cavity 10.
In specific implementation, the shell 1 is an insulation can, so that heat loss in the whole thermoelectric conversion process can be reduced, and the energy utilization rate can be improved.
As shown in fig. 1, the top of the housing 1 has an air inlet 101 and an air outlet 102, and the bottom of the housing 1 has an inlet 104 and an outlet 103.
As shown in fig. 1, the heat storage chamber 10 is located at the top of the housing 1, the heat storage chamber 10 is in fluid communication with the air inlet 101 and the air outlet 102, and the exhaust gas of the host can enter and exit the heat storage chamber 10 through the air inlet 101 and the air outlet 102.
For example, in practical implementation, the heat storage chamber 10 may directly communicate with an exhaust pipeline of a host machine through the air inlet 101, so as to directly introduce the high-temperature exhaust gas at the host machine into the heat storage chamber 10.
As shown in fig. 1, a heat storage body 11 is disposed inside the heat storage cavity 10, and the heat storage body 11 can directly contact with and exchange heat with the high-temperature exhaust gas flowing through the heat storage cavity 10, can obtain heat from the high-temperature exhaust gas, and can store the obtained heat. Since the heat capacity of the heat storage body 11 is large, when the temperature of the exhaust gas of the main machine, i.e., the temperature of the high-temperature exhaust gas, instantaneously fluctuates, the temperature fluctuation of the heat storage body 11 is small, or even remains substantially constant, so that a stable temperature can be maintained.
The heat accumulator 11 material may be one or more of sensible heat storage material, latent heat storage material, phase change heat storage material and chemical heat storage material. The sensible heat storage material comprises water, heat conduction oil, steel slag, iron slag, tailings (including ore sand left by ore dressing in an ore mill), solid particles or concrete. The solid particles are particles or/and bricks consisting of metals or non-metals or mixtures thereof, or sand or cobblestones existing in nature.
In a preferred embodiment, the heat storage body 11 may be made of a porous heat storage material, for example, a mixture of quartz rock and siliceous sand filled between foamed silicon carbide ceramic plates.
As shown in fig. 1, the heat storage chamber 10 has a first heat transfer wall 12, and the first heat transfer wall 12 is in direct contact with the heat storage body 11. With such an arrangement, the path of heat transfer and the intermediate link of heat transfer in the heat storage chamber 10 can be reduced to significantly reduce heat loss and improve heat transfer efficiency, thereby ensuring higher thermoelectric conversion efficiency.
In the present embodiment, the first heat transfer wall 12 is mounted on the inner wall of the casing 1 and defines the heat storage chamber 10 together with the casing 1. Due to the arrangement, the heat insulation performance of the heat storage cavity 10 can be improved, heat loss of tail gas and the heat accumulator 11 is reduced, and the heat utilization rate is improved.
In particular, the material of the first heat transfer wall 12 is copper. For example, in the present embodiment, the first heat transfer wall 12 is a copper heat exchange plate.
Specifically, a high heat-conducting medium is filled in a gap between the first heat transfer wall 12 and the heat accumulator 11. In this embodiment, the high thermal conductive medium is a graphite sticker. In other embodiments, the material of the high thermal conductive medium may be a high thermal conductive silicone sheet or high thermal conductive silicone grease.
To this end, a stable heat transfer process is formed in the heat storage chamber 10: the heat accumulator 11 can directly obtain heat from high-temperature tail gas of a host machine (such as a marine diesel engine) and store the heat; at the same time, the heat of the heat storage body 11 can be transferred to the hot side 31 of the thermoelectric element 30 via the first heat transfer wall 12. As mentioned above, the temperature of the heat storage body 11 can be kept substantially constant during the whole heat transfer process due to the large heat capacity of the heat storage body 11, so that the first heat transfer wall 12 of the heat storage cavity 10 is kept stably close to the temperature of the exhaust gas.
As shown in fig. 1, the second heat transfer wall 22 is located in the cavity of the housing 1 and is fixedly connected to the side wall of the housing 1 to define the cooling chamber 20.
In particular, the second heat transfer wall 22 is arranged spaced apart from the first heat transfer wall 12. In a specific implementation, the second heat transfer wall 22 is welded to the casing 1. With this arrangement, the heat insulating performance of the cooling chamber 20 can be improved, and the temperature change of the cooling chamber 20 can be prevented, so that the cooling body 21 can maintain a stable low temperature.
In particular, the material of the second heat transfer wall 22 is copper or stainless steel. For example, in the present embodiment, the second heat transfer wall 22 is a stainless steel heat exchange plate.
As shown in fig. 1, a cooling body 21 and a heat transfer medium pipeline 23 are disposed in the cavity of the cooling cavity 20, the heat transfer medium pipeline 23 is in contact with the cooling body 21, and the heat transfer medium pipeline 23 is in fluid communication with a cooling medium source (such as a cooling pipeline of a host). To cool the cooling body 21. This arrangement enables the temperature of the cooling body 21 to be always close to the temperature of the cooling water. At this time, even if the cooling body 21 is disturbed by heat from the heat storage chamber 10 or the thermoelectric element 30 or the outside, the temperature of the cooling body 21 fluctuates only in a small range, providing a stable low temperature.
For example, in this embodiment, the main engine may be a marine diesel engine. The heat transfer medium pipeline 23 is in fluid communication with a cooling pipeline of the marine diesel engine, and cooling water of the marine diesel engine can be used as a heat transfer medium. At this time, the cooling water of the diesel engine can exchange heat with the cooling body 21, and cool the cooling body 21, so that the cooling body 21 is close to and maintained at the cooling water temperature, thereby providing a stable low temperature environment for the cold end 32 of the thermoelectric element 30.
In this embodiment, the cooling member 21 may be a heat conducting oil. In other embodiments, the cooling body 21 may be made of one or more of aluminum alloy, copper, iron, gold, silver, silicon nitride, titanium carbide, stainless steel, or graphite.
With further reference to fig. 1, the heat transfer medium line 23 is in fluid communication with the water inlet 104 and the water outlet 103. The heat transfer medium line 23 is fluidly connected to a source of cooling medium through the water inlet 104. For example, in the present embodiment, the cooling medium source may be a marine diesel engine cooling line.
In practical implementation, the winding manner of the heat transfer medium pipe 23 and the heat transfer area of the heat transfer medium pipe 23 may be configured to control the heat transfer coefficient between the cooling body 21 and the heat transfer medium pipe 23.
To this end, a stable heat transfer process is established in the cooling chamber 20: the cooling body 21 can conduct heat with the cold end 32 of the thermoelectric element 30 through the second heat transfer wall 22; at the same time, the cooling body 21 also exchanges heat with the cooling medium in the heat transfer medium pipe 23. As mentioned above, the cooling body 21 can be kept at a relatively stable low temperature due to the continuous heat exchange between the heat transfer medium pipe 23 and the cooling body 21 during the whole process, so that the second heat transfer wall 22 is maintained at a relatively stable temperature.
As shown in fig. 1, the first heat transfer wall 12, the second heat transfer wall 22, and the casing 1 define the thermoelectric conversion chamber. A thermoelectric element 30 and a nano heat insulating material 40 are provided in the thermoelectric conversion chamber.
As shown in fig. 2, the thermoelectric element 30 includes a hot side 31, a cold side 32, and a thermoelectric conversion material layer between the hot side 31 and the cold side 32.
As shown in fig. 1, the thermoelectric element 30 is disposed between the first heat transfer wall 12 and the second heat transfer wall 22. The hot side 31 of the thermoelectric element 30 is directly attached to the first heat transfer wall 12 and the cold side 32 of the thermoelectric element 30 is directly attached to the second heat transfer wall 22.
As described above, since the first heat transfer wall 12 can maintain a temperature close to that of the exhaust gas of the host machine by the heat accumulation chamber 10, the hot end 31 of the thermoelectric element 30 is in a stable high temperature environment. Likewise, since the second heat transfer wall 22 is maintained at a temperature close to that of the cooling medium by the cooling chamber 20, the cold side 32 of the thermoelectric element 30 is in a stable low temperature environment. Therefore, the thermoelectric element 30 is in a high and stable temperature difference environment, and the thermoelectric element 30 can perform thermoelectric conversion stably, continuously, and efficiently.
Meanwhile, it should be noted that, due to the structural arrangement of the cooling cavity 20 itself, in the process that the cooling cavity 20 is directly contacted with the cold end 32 of the thermoelectric element 30 for cooling, the problem of temperature difference reduction between two ends of the thermoelectric element 30 caused by heat conduction of the thermoelectric element 30 itself can also be overcome.
In the present embodiment, as shown in fig. 1, the hot end 31 and the cold end 32 are oppositely disposed in parallel.
Specifically, the thermoelectric element 30 is fixed to the second heat transfer wall 22 by a clamp 50. In one embodiment, the clip 50 may be a spring clip.
In particular implementations, the thermoelectric element 30 may be a thermoelectric chip.
As shown in fig. 1, the nano-insulation material 40 is located between the first heat transfer wall 12 and the second heat transfer wall 22, and the nano-insulation material 40 is filled between the thermoelectric elements 30. With such an arrangement, under the condition that the hot end 31 and the cold end 32 of the thermoelectric element 30 are respectively and sufficiently contacted with the first heat transfer wall 12 and the second heat transfer wall 22, direct heat exchange between the first heat transfer wall 12 and the second heat transfer wall 22 can be reduced, heat in the heat storage cavity 10 is prevented from being directly transferred into the cooling cavity 20, heat loss is reduced, and the thermoelectric conversion efficiency is improved.
For example, as shown in fig. 1, in the present embodiment, two opposite sides of the nano-insulation material 40 respectively contact the surfaces of the first heat transfer wall 12 and the second heat transfer wall 22 to reduce heat transfer between the first heat transfer wall 12 and the second heat transfer wall 22 and heat loss. In the embodiment, in order to achieve a better heat insulation effect, a nano heat insulation material 40 is filled in a gap between the thermoelectric element 30 and the holder 50.
In this embodiment, the material of the nano heat insulating material 40 is a nano heat insulating material.
In the thermoelectric heat energy conversion device of the present invention: the heat accumulator 11 is arranged in the heat accumulation cavity 10, and the cooling body 21 and the heat transfer medium pipeline 23 are filled in the cooling cavity 20, so that the stability of the hot end temperature, the cold end temperature and the cold and hot end temperature difference of the thermoelectric element 30 can be ensured; the tail gas directly flows through the heat accumulator 11, and the first heat transfer wall 12 is simultaneously and directly contacted with the heat accumulator 11 and the hot end 31 of the thermoelectric element 30, so that the energy conversion link or process can be saved, the heat in the tail gas is stably output to the hot end 31 of the thermoelectric element 30, and the thermoelectric conversion efficiency is improved; further, by bringing second heat transfer wall 22 into direct contact with both cooling body 21 and cold side 32 of thermoelectric element 30, cold side 32 can be stably maintained at a low temperature, thereby ensuring high thermoelectric conversion efficiency. It can be seen that the thermoelectric thermal energy conversion device of the present invention can form a high and stable temperature difference at two ends of the thermoelectric element 30, so as to provide a power source for subsequent thermoelectric conversion, thereby obtaining a relatively high thermoelectric conversion efficiency.
The present invention further provides a thermoelectric system, which includes the thermoelectric thermal energy conversion device of the present invention, and the specific structure of the thermoelectric thermal energy conversion device is referred to above and is not described herein again.
In addition, the thermoelectric system of the invention also comprises a tail gas pipeline of the main engine, a cooling pipeline of the main engine and a power management module.
Wherein host computer tail gas pipeline with heat accumulation chamber 10 fluid intercommunication can directly provide heat accumulation chamber 10 with host computer tail gas to can reduce middle heat transfer link, improve the thermal utilization ratio of tail gas.
The main machine cooling pipeline is in fluid communication with the heat transfer medium pipeline 23, and can directly utilize cooling water in the main machine cooling pipeline to cool the cooling body 21.
In a preferred embodiment, the thermoelectric system may be integrated with a marine diesel power module, and in this case, the main engine exhaust line may be a marine diesel exhaust line, and the main engine cooling line may be a marine diesel cooling line.
The present invention has been described in detail, and the principle and the implementation of the present invention are explained by applying specific examples, and the description of the above examples is only used to help understand the technical solution and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A thermoelectric heat energy conversion device for converting at least part of the heat energy of the tail gas of a host into electric energy is characterized by comprising a shell, a first heat transfer wall and a second heat transfer wall which are arranged in a cavity of the shell at intervals, and a thermoelectric element arranged in the shell, wherein the first heat transfer wall and the shell jointly enclose a heat storage cavity, the second heat transfer wall and the shell jointly enclose a cooling cavity, and the thermoelectric element is arranged in the shell,
a heat accumulator directly contacting the surface of the first heat transfer wall is arranged in the heat accumulation cavity, tail gas of the host machine flows through the heat accumulation cavity, and the heat accumulator is used for directly contacting the tail gas, receiving heat from the tail gas and storing the heat;
a cooling body directly contacting the second heat transfer wall and a heat transfer medium pipeline contacting the cooling body are arranged in the cooling cavity, and the heat transfer medium pipeline is communicated with a cooling medium source in a fluid mode and used for cooling the cooling body;
the thermoelectric element is arranged between the first heat transfer wall and the second heat transfer wall and is provided with a hot end and a cold end, wherein the hot end is contacted with the first heat transfer wall, and the cold end is contacted with the second heat transfer wall.
2. The thermoelectric thermal energy conversion device according to claim 1, wherein a nano-insulation material is further provided between the first heat transfer wall and the second heat transfer wall, and the nano-insulation material is filled between the thermoelectric elements.
3. The thermoelectric thermal energy conversion device according to claim 1, wherein an air inlet and an air outlet are provided at a top of the housing and are in fluid communication with the heat storage chamber, and the air inlet is in communication with an exhaust gas pipeline of the main engine.
4. The thermoelectric thermal energy conversion device according to claim 1, wherein a water inlet and a water outlet are provided at a bottom of the case, the heat transfer medium line is in fluid communication with a cooling line of the main unit through the water inlet, and the heat transfer medium line is in fluid communication with the water outlet.
5. The thermoelectric thermal energy conversion device according to claim 1, wherein a highly heat conductive medium is filled in a gap between the heat storage body and the first heat transfer wall.
6. The thermoelectric thermal energy conversion device according to claim 1, wherein the thermoelectric element is fixed to the second heat transfer wall by a clamp.
7. The thermoelectric thermal energy conversion device of claim 1, wherein the materials of the first heat transfer wall and the second heat transfer wall are independently copper and stainless steel, respectively.
8. The thermoelectric thermal energy conversion device according to claim 1, wherein the cooling body is a heat conductive oil.
9. A thermoelectric thermal system comprising the thermoelectric thermal conversion device of any one of claims 1 to 8.
10. The thermoelectric system of claim 9, further comprising a host tail gas line, a host cooling line, and a power management module;
wherein the host exhaust line is in fluid communication with the thermal storage cavity;
the host cooling line is in fluid communication with the heat transfer medium line;
the power management module is electrically connected with the thermoelectric element.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201594801U (en) * | 2010-01-12 | 2010-09-29 | 重庆大学 | Heat accumulating type temperature difference power generation device based on thermotube thermoswitch |
| WO2014157287A1 (en) * | 2013-03-29 | 2014-10-02 | ヤンマー株式会社 | Exhaust gas purification system for ships |
| CN105089849A (en) * | 2015-07-21 | 2015-11-25 | 中国船舶重工集团公司第七一一研究所 | Exhaust afterheat temperature difference thermoelectric system |
| CN106523103A (en) * | 2016-11-09 | 2017-03-22 | 中国船舶重工集团公司第七研究所 | Medium circulation system for exhaust heat indirect type temperature-difference thermoelectric device for marine diesel engine |
| CN110611457A (en) * | 2019-11-05 | 2019-12-24 | 河北工业大学 | Tail gas temperature difference power generation system adopting intermediate fluid circulation |
-
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201594801U (en) * | 2010-01-12 | 2010-09-29 | 重庆大学 | Heat accumulating type temperature difference power generation device based on thermotube thermoswitch |
| WO2014157287A1 (en) * | 2013-03-29 | 2014-10-02 | ヤンマー株式会社 | Exhaust gas purification system for ships |
| CN105089849A (en) * | 2015-07-21 | 2015-11-25 | 中国船舶重工集团公司第七一一研究所 | Exhaust afterheat temperature difference thermoelectric system |
| CN106523103A (en) * | 2016-11-09 | 2017-03-22 | 中国船舶重工集团公司第七研究所 | Medium circulation system for exhaust heat indirect type temperature-difference thermoelectric device for marine diesel engine |
| CN110611457A (en) * | 2019-11-05 | 2019-12-24 | 河北工业大学 | Tail gas temperature difference power generation system adopting intermediate fluid circulation |
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