Micro cyclone combustion based thermoelectric generator

Abstract

The application discloses a micro-cyclone combustion-based thermoelectric generator, which comprises a heat-conducting body, a combustion cavity, an exhaust cavity and a waste discharge cavity, one end of the exhaust cavity is communicated with the combustion cavity, and the other end is communicated with the waste discharge cavity; a gas pipe is installed on the heat-conducting body and comprises a first pipe and a second pipe, the middle part of the first pipe is provided with an inner pipe, the end of the inner pipe is provided with a cyclone device, the first pipe is further provided with a plurality of combustion-supporting gas channels, the second pipe is provided with a waste discharge channel, one end of the waste discharge channel is communicated with the waste discharge cavity, and the other end is communicated with external air or an exhaust pipe; a thermoelectric generator sheet is in abutment with the outer side wall of the heat-conducting body; a cooling device; and a controller. The inner pipe of the thermoelectric generator is provided with the cyclone device, so that the flow direction of the combustion-supporting gas can be changed, the cyclone combustion-supporting gas is formed, and the fuel can be stably and efficiently combusted.

Description

Technical Field

[0001] The present invention relates to power generation equipment, in particular to a thermoelectric generator based on micro swirl combustion. Background Art

[0002] The Seebeck effect is a thermoelectric phenomenon in which a voltage difference between two different conductors or semiconductors is generated due to a temperature difference. Thermoelectric cells use the Seebeck effect to convert thermal energy into electrical energy. This property can be exploited to create thermoelectric generators for generating electricity in outdoor locations.

[0003] Existing thermoelectric generators usually convert thermal energy into electrical energy by burning biomass, which requires frequent replenishment of biomass fuel. In addition, the combustion of biomass fuel is not stable, resulting in poor user experience and power generation effect. Summary of the Invention

[0004] In response to the above problems, the present invention proposes a thermoelectric generator based on micro swirl combustion.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A thermoelectric generator based on micro swirl combustion, comprising:

[0007] A heat-conducting body, the heat-conducting body having a combustion chamber, an exhaust chamber, and a waste exhaust chamber, one end of the exhaust chamber being in communication with the combustion chamber, and the other end being in communication with the waste exhaust chamber;

[0008] An air pipe is mounted on the heat-conducting body, and its end extends into the heat-conducting body, the air pipe includes a first pipe and a second pipe sheathed in the first pipe, the end of the first pipe is connected to the combustion chamber, the middle of the first pipe is provided with an inner pipe, the internal space of the inner pipe is a fuel channel, a swirler is installed at the end of the inner pipe close to the combustion chamber, the first pipe further has a plurality of combustion-supporting gas channels arranged around the axis of the inner pipe, the combustion-supporting gas channels are connected to the combustion chamber after passing through the swirler, the swirler is used to change the flow direction of the combustion-supporting gas to form a swirling combustion-supporting gas, the second pipe is provided with a waste discharge channel, one end of the waste discharge channel is connected to the waste discharge chamber, and the other end is connected to the external air or an exhaust pipe;

[0009] The thermoelectric generating sheet has one side abutting against the outer wall of the heat conducting body;

[0010] A cooling device is provided on the side of the thermoelectric generating sheet facing away from the heat conducting body;

[0011] A controller is electrically connected to the thermoelectric power generation sheet.

[0012] The temperature difference generator of the application can deliver fuel to the combustion chamber through the inner tube, deliver combustion-supporting gas to the combustion chamber through the combustion-supporting gas channel, and enable stable combustion of the mixed gas in the combustion chamber, because the inner tube is provided with a cyclone, so that the flow direction of the combustion-supporting gas can be changed to form cyclone combustion-supporting gas, so that the fuel can be burned stably and efficiently, the heat energy generated by combustion can heat the heat-conducting body, at the same time, the exhaust gas generated by combustion can also heat the heat-conducting body when moving in the exhaust chamber, and finally the exhaust gas is discharged through the exhaust passage of the gas pipe, and the exhaust gas can also preheat the combustion-supporting gas in the combustion-supporting gas channel when being discharged; one side of the temperature difference power generation sheet abuts against the outer side wall of the heat-conducting body, and the other side can be cooled through the cooling device, so as to form a temperature difference and realize power generation operation.

[0013] The application burns fuel, which is more stable than burning biomass.

[0014] In actual use, the fuel bottle can provide fuel stably for a long time; the combustion-supporting gas can be air. In actual use, the combustion-supporting gas can be delivered to the combustion-supporting gas channel by a fan.

[0015] The fuel channel, the combustion-supporting gas channel and the exhaust passage are all arranged on the gas pipe, so that the structure is simple and reliable, and the installation and replacement are more convenient.

[0016] In one embodiment of the application, the heat-conducting body has a threaded hole, the second pipe outer side wall of the gas pipe has an external thread, and the gas pipe is screwed in the threaded hole. The threaded connection mode facilitates the installation and disassembly of the gas pipe.

[0017] In one embodiment of the application, the heat-conducting body includes two heat-conducting plates abutting against each other, one side end face of the heat-conducting plate is provided with a groove, and the grooves of the two heat-conducting plates correspond to each other to form the combustion chamber, the exhaust chamber and the exhaust chamber.

[0018] The temperature difference power generation sheet has two groups, which abut against the corresponding heat-conducting plates.

[0019] The heat-conducting plate is arranged in this way, so that the two heat-conducting plates can better absorb energy, and the two heat-conducting plates can install the temperature difference power generation sheet to better generate electricity.

[0020] In one embodiment of the application, the material of the heat-conducting plate is copper, aluminum or graphite.

[0021] In one embodiment of the application, the exhaust chamber is a reciprocating bending structure.

[0022] The reciprocating bending structure of the exhaust chamber can increase the residence time of the exhaust gas, and can improve the waste heat utilization rate.

[0023] In one embodiment of the present invention, there are two exhaust cavities, which are respectively disposed on both sides of the combustion chamber, and the two exhaust cavities are respectively located on both sides of the first tube.

[0024] The design of two exhaust chambers can accommodate more thermoelectric generators, and the reciprocating bending structure can fully utilize the heat of the exhaust gas.

[0025] In one embodiment of the present invention, a partition plate is disposed in the exhaust cavity.

[0026] Providing a partition plate can increase the contact area between the heat-conducting body and the hot exhaust gas, thereby improving the heat transfer efficiency.

[0027] In one embodiment of the present invention, the cooling device is a heat sink or a water cooler. When it is a water cooler, the cooling device includes a cooling body abutting against the thermoelectric power generation plate, and the interior of the cooling body has a cooling channel, one end of the cooling channel is a liquid inlet, and the other end is a liquid outlet.

[0028] In actual use, a fan can also be installed to cooperate with the heat dissipation fins to improve the air cooling efficiency.

[0029] When the water cooler is in use, it is necessary to connect the coolant through a pipe and circulate the coolant through a circulating pump.

[0030] In one embodiment of the present invention, there are multiple exhaust channels distributed around the axis of the second tube, and the exhaust gas from the exhaust channels can preheat the gas in the combustion-supporting gas channel.

[0031] In one embodiment of the present invention, an igniter is further included on the heat-conducting body, and the igniter is used to ignite the mixed gas in the combustion chamber.

[0032] In actual use, the igniter can also be screwed onto the heat-conducting body.

[0033] In actual use, an observation structure can also be provided to observe the combustion chamber. For example, an observation port is provided on the heat conducting body, a sealing plug is screwed onto the observation port, and a transparent plate is installed on the sealing plug, so that the combustion chamber can be observed through the transparent plate.

[0034] The beneficial effects of the application are that the temperature difference generator can deliver fuel to the combustion chamber through the inner tube, deliver combustion-supporting gas to the combustion chamber through the combustion-supporting gas passage, and enable stable combustion of the mixed gas in the combustion chamber, because the inner tube is provided with a cyclone, so that the flow direction of the combustion-supporting gas can be changed to form cyclone combustion-supporting gas, so that the fuel can be stably and efficiently combusted, the heat energy generated by combustion can heat the heat-conducting body, at the same time, the exhaust gas generated by combustion is discharged through the exhaust chamber, and the exhaust gas can also heat the heat-conducting body when moving in the exhaust chamber, and finally the exhaust gas is discharged through the exhaust passage of the gas pipe, and the exhaust gas can also preheat the combustion-supporting gas in the combustion-supporting gas passage when being discharged; one side of the temperature difference generator sheet abuts against the outer side wall of the heat-conducting body, and the other side can be cooled through the cooling device, so as to form a temperature difference and realize power generation. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic view of the temperature difference generator based on micro cyclone combustion of the application;

[0036] Figure 2 is an elevation view of the heat-conducting body;

[0037] Figure 3 is Figure 2 is the A-A sectional view in the figure;

[0038] Figure 4 is an exploded view of the heat-conducting body;

[0039] Figure 5 is a structural schematic view of the gas pipe;

[0040] Figure 6 is a structural schematic view of the gas pipe from another angle;

[0041] Figure 7 is a schematic view of the heat dissipation fin.

[0042] The reference signs in the figures are as follows:

[0043] 1, heat-conducting body; 2, combustion chamber; 3, exhaust chamber; 4, exhaust chamber; 5, gas pipe; 6, first tube; 7, second tube; 8, inner tube; 9, fuel passage; 10, combustion-supporting gas passage; 11, exhaust passage; 12, temperature difference generator sheet; 13, cooling device; 14, threaded hole; 15, heat-conducting plate; 16, partition plate; 17, cooling body; 18, liquid inlet; 19, liquid outlet; 20, cyclone. DETAILED DESCRIPTION

[0044] The application will be described in detail below in combination with the drawings.

[0045] As Figure 1 , 2 , 3, 4, 5 and 6, a temperature difference generator based on micro cyclone combustion, comprising:

[0046] The heat-conducting body 1 has a combustion chamber 2, an exhaust chamber 3 and a waste exhaust chamber 4. One end of the exhaust chamber 3 is connected to the combustion chamber 2, and the other end is connected to the waste exhaust chamber 4.

[0047] The gas pipe 5 is installed on the heat-conducting body 1, and its end extends into the heat-conducting body 1. The gas pipe 5 includes a first tube 6 and a second tube 7 jacketed on the first tube 6. The end of the first tube 6 is connected to the combustion chamber 2. The middle of the first tube 6 is provided with an inner tube 8. The internal space of the inner tube 8 is a fuel channel 9. A swirler 20 is installed on the end of the inner tube 8 close to the combustion chamber 2. The first tube 6 also has a plurality of combustion-supporting gas channels 10 arranged around the axis of the inner tube 8. The combustion-supporting gas channels 10 are connected to the combustion chamber 2 after passing through the swirler 20. The swirler 20 is used to change the flow direction of the combustion-supporting gas to form a swirling combustion-supporting gas. The second tube 7 is provided with a waste discharge channel 11. One end of the waste discharge channel 11 is connected to the waste discharge chamber 4, and the other end is connected to the external air or the exhaust pipe 5;

[0048] The thermoelectric power generation sheet 12 has one side abutting against the outer wall of the heat conducting body 1;

[0049] The cooling device 13 is provided on the side of the thermoelectric generating sheet 12 facing away from the heat conducting body 1;

[0050] The controller (omitted and not shown in the figure) is electrically connected to the thermoelectric power generation sheet 12 .

[0051] The thermoelectric generator of the present application can transport fuel to the combustion chamber 2 through the inner tube 8, and can transport combustion-supporting gas to the combustion chamber 2 through the combustion-supporting gas channel 10, so that the mixed gas can burn stably in the combustion chamber. Because the inner tube 8 is provided with a swirler 20, the flow direction of the combustion-supporting gas can be changed to form a swirling combustion-supporting gas, so that the fuel can burn stably and efficiently, and the heat energy generated by the combustion can heat the heat-conducting body 1. At the same time, the exhaust gas generated by the combustion is discharged through the exhaust chamber 3. The exhaust gas can also heat the heat-conducting body 1 when it moves in the exhaust chamber 3. Finally, the exhaust gas is discharged through the exhaust channel 11 of the air pipe 5, and the exhaust gas can also preheat the combustion-supporting gas in the combustion-supporting gas channel 10 when it is discharged; one side of the thermoelectric power generation plate 12 is against the outer wall of the heat-conducting body 1, and the other side can be cooled by the cooling device 13, thereby forming a temperature difference to realize the power generation operation.

[0052] The present application uses fuel for combustion, which is more stable than burning biomass.

[0053] In actual use, the fuel can be provided stably for a long time by the fuel bottle; the combustion-supporting gas can be air. In actual use, the combustion-supporting gas can also be delivered to the combustion-supporting gas channel 10 by a fan.

[0054] The fuel channel 9, the combustion-supporting gas channel 10 and the exhaust channel 11 are all arranged on the gas pipe 5. This arrangement makes the structure simple and reliable, and is convenient to install and replace.

[0055] In this embodiment, the swirler 20 may be a blade.

[0056] like Figure 3 and 4 As shown, in this embodiment, the heat conducting body 1 has a threaded hole 14, the outer side wall of the second tube 7 of the air pipe 5 has an external thread, and the air pipe 5 is screwed into the threaded hole 14. The threaded connection method facilitates the installation and removal of the air pipe 5.

[0057] like Figure 1 and 4 As shown, in this embodiment, the heat conducting body 1 includes two heat conducting plates 15 abutting against each other, and a groove is provided on one end surface of the heat conducting plate 15. The grooves of the two heat conducting plates 15 correspond to each other to form a combustion chamber 2, an exhaust chamber 3 and a waste discharge chamber 4;

[0058] There are two groups of thermoelectric power generation sheets 12 , each of which abuts against a corresponding heat conducting plate 15 .

[0059] The heat conducting plates 15 are arranged in this way so that both heat conducting plates 15 can absorb energy well, and both heat conducting plates 15 can be installed with the thermoelectric power generation sheet 12 to generate electricity better.

[0060] In this embodiment, the heat conducting plate 15 is made of copper, aluminum or graphite.

[0061] like Figure 3 and 4 As shown, in this embodiment, the exhaust chamber 3 is a reciprocating bending structure. The reciprocating bending structure of the exhaust chamber 3 can increase the residence time of the exhaust gas and improve the utilization rate of the waste heat.

[0062] like Figure 3 As shown, in this embodiment, there are two exhaust cavities 3, one on each side of the combustion chamber 2, and the two exhaust cavities 3 are located on both sides of the first tube 6. The design of two exhaust cavities 3 can accommodate more thermoelectric generators 12, and the reciprocating bending design can fully utilize the heat of the exhaust gas.

[0063] like Figure 3 As shown, in this embodiment, a partition plate 16 is provided in the exhaust chamber 3. The provision of the partition plate 16 can increase the contact area between the heat-conducting body 1 and the hot exhaust gas, thereby improving the heat transfer efficiency.

[0064] like Figure 1As shown, in this embodiment, the cooling device 13 is a water cooler. The cooling device 13 includes a cooling body 17 that is in contact with the thermoelectric generator 12. The cooling body 17 has a cooling channel inside. One end of the cooling channel is a liquid inlet 18, and the other end is a liquid outlet 19. When the water cooler is in use, it needs to be connected to the coolant through a pipeline and circulated by a circulating pump.

[0065] In other embodiments, the cooling device 13 may also be a heat dissipation fin (such as Figure 7 In actual use, a fan can be installed to cooperate with the heat dissipation fins to improve the air cooling efficiency.

[0066] like Figure 5 and 6 As shown, in this embodiment, there are multiple waste exhaust channels 11 distributed around the axis of the second tube 7 , and the waste gas from the waste exhaust channels 11 can preheat the gas in the combustion-supporting gas channel 10 .

[0067] In this embodiment, an igniter (omitted and not shown) is further included on the heat-conducting body 1, and the igniter is used to ignite the mixed gas in the combustion chamber 2. In actual use, the igniter can also be screwed onto the heat-conducting body 1.

[0068] In actual use, an observation structure can also be provided to observe the combustion chamber 2. For example, an observation port is provided on the heat-conducting body 1, a sealing plug is screwed onto the observation port, and a transparent plate is installed on the sealing plug, so that the combustion chamber 2 can be observed through the transparent plate.

[0069] The above description is only a preferred embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent structural transformation made by using the contents of the description and drawings of the present invention, directly or indirectly applied to other related technical fields, is also included in the scope of protection of the present invention.

Claims

1. A thermoelectric generator based on micro swirl combustion, characterized in that: include: A heat-conducting body, the heat-conducting body having a combustion chamber, an exhaust chamber, and a waste exhaust chamber, one end of the exhaust chamber being in communication with the combustion chamber, and the other end being in communication with the waste exhaust chamber; An air pipe is mounted on the heat-conducting body, and its end extends into the heat-conducting body, the air pipe includes a first pipe and a second pipe sheathed in the first pipe, the end of the first pipe is connected to the combustion chamber, the middle of the first pipe is provided with an inner pipe, the internal space of the inner pipe is a fuel channel, a swirler is installed at the end of the inner pipe close to the combustion chamber, the first pipe further has a plurality of combustion-supporting gas channels arranged around the axis of the inner pipe, the combustion-supporting gas channels are connected to the combustion chamber after passing through the swirler, the swirler is used to change the flow direction of the combustion-supporting gas to form a swirling combustion-supporting gas, the second pipe is provided with a waste discharge channel, one end of the waste discharge channel is connected to the waste discharge chamber, and the other end is connected to the external air or an exhaust pipe; The thermoelectric generating sheet has one side abutting against the outer wall of the heat conducting body; A cooling device is provided on the side of the thermoelectric generating sheet facing away from the heat conducting body; A controller electrically connected to the thermoelectric power generation sheet; The heat-conducting body has a threaded hole, the outer side wall of the second tube of the air pipe has an external thread, and the air pipe is screwed into the threaded hole; The heat-conducting body includes two heat-conducting plates abutting against each other, one end surface of each heat-conducting plate is provided with a groove, and the grooves of the two heat-conducting plates correspond to each other to form the combustion chamber, the exhaust chamber and the waste discharge chamber; There are two groups of thermoelectric power generation sheets, each of which abuts against a corresponding heat conducting plate.

2. The thermoelectric generator based on micro swirl combustion according to claim 1, characterized in that: The heat conducting plate is made of copper, aluminum or graphite.

3. The thermoelectric generator based on micro swirl combustion according to claim 1, characterized in that: The exhaust cavity is a reciprocating bending structure.

4. The thermoelectric generator based on micro swirl combustion according to claim 3, characterized in that: There are two exhaust cavities, which are respectively arranged on both sides of the combustion chamber, and the two exhaust cavities are respectively located on both sides of the first tube.

5. The thermoelectric generator based on micro swirl combustion according to claim 3, characterized in that: A partition plate is provided in the exhaust cavity.

6. The thermoelectric generator based on micro swirl combustion according to claim 1, characterized in that: The cooling device is a heat dissipation fin or a water cooler. When it is a water cooler, the cooling device includes a cooling body abutting against the thermoelectric power generation plate. The interior of the cooling body has a cooling channel, one end of the cooling channel is a liquid inlet, and the other end is a liquid outlet.

7. The thermoelectric generator based on micro swirl combustion according to claim 1, characterized in that: There are multiple waste discharge channels distributed around the axis of the second tube, and the waste gas from the waste discharge channels can preheat the gas in the combustion-supporting gas channel.

8. The thermoelectric generator based on micro swirl combustion according to claim 1, characterized in that: It also includes an igniter arranged on the heat-conducting body, and the igniter is used to ignite the mixed gas in the combustion chamber.

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