Combustion chamber and power generation device

By designing the unidirectional heat absorption channel of the combustion chamber and the three-dimensional closed exhaust channel structure, the problem of low thermal energy utilization rate of fuel combustion is solved, multiple absorption and insulation effects of heat energy are achieved, and the energy conversion efficiency is improved.

CN116357947BActive Publication Date: 2025-08-12GUANGDONG ROCK TECH CO LTD
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Patent Information

Application Number
CN202310370504.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-07
Publication Date
2025-08-12
Estimated Expiration
2043-04-07

AI Technical Summary

Technical Problem

In the prior art, the thermal energy generated during combustion of fuel is low, and some of the thermal energy is lost by exhaust gas or exchanged with the environment, resulting in low thermal efficiency.

Method used

A combustion chamber is designed, using a one-way heat absorption channel and a three-dimensional closed exhaust channel structure. Through the spirally surrounded exhaust main exhaust channel and connecting channel, multiple absorption and insulation effects of exhaust gas thermal energy are achieved, and refrigerant evaporation is used for energy utilization.

Benefits of technology

The utilization rate of heat energy during fuel combustion is improved, the loss of heat energy is reduced, and steam or power generation is generated through refrigerant evaporation, which improves the energy conversion efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the field of combustion chamber technology, and more particularly to a combustion chamber and power generation device, comprising a combustion chamber and a one-way heat absorption channel for one-way circulation of refrigerant. The combustion chamber is provided with an air intake duct for admitting air, a fuel channel for admitting fuel and cooperating with the air intake for combustion, and an exhaust channel for discharging combustion exhaust gases. The exhaust channel comprises a plurality of exhaust main channels and connecting channels, wherein the inner and outer walls of the exhaust main channels are three-dimensional planar structures, the plurality of exhaust main channels are sequentially arranged from the inside out and connected through connecting channels, the inner side of the innermost exhaust main channel is formed with a combustion chamber for fuel combustion, and the two are interconnected. The one-way heat absorption channel is sequentially arranged spirally around the exhaust main channel from the outside in, with both ends of the one-way heat absorption channel located outside the combustion chamber. The present application can relatively fully absorb the heat energy generated by fuel combustion.
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Description

Technical Field

[0001] The present application relates to the field of combustion chamber technology, and in particular to a combustion chamber and a power generation device. Background Art

[0002] Combustion chambers are primarily used for fuel combustion, releasing the chemical energy generated as heat. They are widely used in engines, boilers, power generation, and other fields. This is particularly true in boilers and other applications where a refrigerant medium must be evaporated to convert thermal energy into kinetic energy or to achieve a state transition through thermal energy. However, in the past, heating the medium through fuel often achieved this transformation solely through flames. Consequently, most of the heat generated by fuel combustion was dissipated through exhaust gases and heat exchange with the surrounding environment, resulting in a relatively low heat conversion rate.

[0003] In order to improve the thermal efficiency of fuel combustion, multi-return technology is often used in the existing technology, that is, the exhaust gas generated after the combustion of fuel in the boiler flows back and forth through the flue, and a pipe is set in the flue. The refrigerant medium in the pipe is heated through the pipe and the reciprocating exhaust gas, thereby improving the thermal efficiency of the fuel.

[0004] Although the aforementioned existing technologies can relatively fully utilize the heat energy contained in the exhaust gas generated after the fuel is burned; however, the fuel releases heat energy rapidly during combustion, and part of the heat energy is discharged with the exhaust gas during this process; the remaining heat energy will be dissipated through heat exchange with the environment around the combustion chamber, resulting in a relatively large loss of heat energy during the fuel combustion process. At this time, in order to improve thermal efficiency, the existing technology will use more return strokes to make the exhaust gas go back and forth multiple times to achieve the absorption of heat energy in the exhaust gas, but the utilization rate of the heat energy dissipated during the fuel combustion process is still relatively low. Therefore, how to relatively comprehensively utilize the heat energy generated during the fuel combustion process is a problem that urgently needs to be solved. Summary of the Invention

[0005] In order to relatively comprehensively utilize the heat energy generated during the fuel combustion process, the present application provides a combustion chamber and a power generation device.

[0006] The present application provides a combustion chamber and a power generation device, which adopt the following technical solutions:

[0007] In a first aspect, the present application provides a combustion chamber;

[0008] A combustion chamber comprises a combustion chamber and a one-way heat absorption channel for one-way circulation of refrigerant, the combustion chamber is provided with an air inlet for introducing air, a fuel channel for introducing fuel and cooperating with the introduction of air for combustion, and an exhaust channel for discharging combustion exhaust gas; the exhaust channel comprises a plurality of exhaust main channels and connecting channels, the inner and outer walls of the exhaust main channels are both three-dimensional closed surface structures, the plurality of exhaust main channels are successively arranged from the inside to the outside and are successively connected through connecting channels, the inner side of the innermost exhaust main channel is formed with a combustion chamber for fuel combustion and the two are connected to each other; the one-way heat absorption channel is successively spirally arranged around the exhaust main channel from the outside to the inside, and the two ends of the one-way heat absorption channel are located outside the combustion chamber.

[0009] By adopting the above technical solution, when in use, the fuel enters the combustion chamber through the fuel channel, and in the process is burned in conjunction with the air flowing into the intake duct. After the fuel is burned, since the exhaust channel is a three-dimensional closed surface structure and the exhaust gas is discharged only through the connecting channel, at this time, the heat energy generated by the combustion can be relatively fully retained in the combustion chamber, and in the process of reciprocating through the exhaust channel, it is fully in contact with the one-way heat absorption channel and absorbs heat energy through the one-way heat absorption channel, causing the refrigerant in the one-way heat absorption channel to evaporate, and then the heat energy is utilized by the evaporated refrigerant, such as generating electricity or producing steam; in addition, since the exhaust main channel is arranged in multiple layers, it can also have an insulation effect on the combustion chamber to further reduce the direct loss of heat energy.

[0010] Optionally, the portion of the one-way heat absorption channel located in the combustion chamber includes a plurality of heat absorption parts and connecting parts, the heat absorption parts are spirally arranged in the exhaust main channel and the combustion chamber, and the plurality of heat absorption parts are connected through the connecting parts from the outside to the inside.

[0011] By adopting the above technical solution, the heat absorption part can guide the exhaust gas in the exhaust main channel, so that the exhaust gas becomes a spiral airflow, so as to optimize the absorption of heat energy in the exhaust gas by the heat absorption part, and the absorption part transports the evaporated refrigerant to the inner or outer heat absorption part through the connecting part, so as to realize the reuse of heat energy in the exhaust gas in different exhaust main channels, and further optimize the absorption of heat energy in the exhaust gas.

[0012] Optionally, the two connecting channels communicating with the exhaust main channel are located at opposite ends of the exhaust main channel.

[0013] By adopting the above technical solution, the flow path of the heat exchanger in the exhaust main channel can be effectively increased, and the occurrence of uneven heat absorption can be reduced.

[0014] Optionally, the air intake duct includes several air intake main ducts and air intake connecting channels, and the air intake main duct has a three-dimensional closed surface structure. Several of the air intake main ducts are successively arranged from the outside to the inside and are connected through the air intake connecting channels; several of the air intake main ducts and exhaust main ducts are alternately distributed from the outside to the inside and are connected through the air intake connecting channels.

[0015] By adopting the above technical solution, during the process of introducing external air, the air before entering the combustion chamber can be preheated through the exhaust main channel on the adjacent side to increase the combustion temperature.

[0016] Optionally, the interior of the combustion chamber is provided with a plurality of chamber bodies which are successively arranged from the outside to the inside, and the chamber bodies are three-dimensional closed surface structures, and the exhaust main channel and the intake main channel are both formed in the gap between two different adjacent chamber bodies; the connecting channel and the intake connecting channel are both pipes, and the connecting channel is arranged through the intake main channel and connected to two adjacent exhaust main channels, and the intake connecting channel is arranged through the exhaust main channel and connected to two adjacent intake main channels.

[0017] By adopting the above technical solution, the exhaust main channel and the air intake main channel are formed in the gap between different chamber bodies, thereby realizing the reciprocating flow of external air and exhaust gas inside and outside the combustion chamber.

[0018] Optionally, a number of connecting strips are provided in the exhaust main channel and the air intake main channel, the one-way heat absorption channel is passed through the connecting strips, the connecting strips are connected to two adjacent warehouse bodies, and the two ends of the connecting strips are provided corresponding to the input end and output end of the exhaust main channel or the air intake main channel on the inner side of the warehouse body.

[0019] By adopting the above technical solution, the connecting strip can keep the gap between the two adjacent storage bodies stable, reducing the possibility of deformation of the storage body due to the output of exhaust gas in the combustion chamber and temperature changes; at the same time, the heat absorption part can also be positioned by the connecting strip so that the heat absorption part is located in the middle of the exhaust main channel, thereby increasing the contact area between the heat absorption part and the exhaust gas and optimizing the absorption efficiency of thermal energy.

[0020] Optionally, the connecting strip includes two connecting strip bodies distributed in a direction outward from the combustion chamber, the two connecting strip bodies are spliced together, and a limiting hole for a one-way heat absorption channel to pass through is opened at the splicing seam.

[0021] By adopting the above technical solution, the connection bar body, the heat absorption part and the connection bar body can be installed successively, thereby reducing the interference of the connection bar on the installation of the heat absorption part.

[0022] Optionally, the connecting strip is provided with a connecting piece, which includes a connecting rod, a limiting portion and a positioning portion in a tubular structure. The connecting rod and the positioning portion are arranged on the same central axis and their facing ends are fixedly connected to the limiting portion. The connecting rod is passed through the warehouse body and is threadedly connected to the positioning portion of the inner connecting piece of the warehouse body or is fixedly connected to the outer wall of the innermost warehouse body. The limiting portion abuts the outer wall of the warehouse body; and the positioning portion abuts two adjacent warehouse bodies.

[0023] By adopting the above technical solution, during the installation of the warehouse body, the positioning between the two adjacent warehouse bodies before and after installation can be achieved through the abutment and matching connecting strips of the positioning part. At the same time, the warehouse body is pressed against the inner warehouse body through the limiting part and fixed through the connecting rod.

[0024] Optionally, the refrigerant enters the inner exhaust main channel through the outermost exhaust main channel and then enters the combustion chamber, and is used to heat the refrigerant in the combustion chamber from the outside to the inside; and the inner walls of the exhaust main channel and the combustion chamber are provided with an insulation layer.

[0025] By adopting the above technical solution, after the external refrigerant enters the combustion chamber, it is first heated through the external exhaust main channel. At the same time, since the exhaust gas is discharged from the inside to the outside and the refrigerant is heated successively in this process, the refrigerant is heated successively through different exhaust main channels from the outside to the inside, forming a temperature gradient. In this process, the intake main channel can also absorb the heat energy of the adjacent exhaust main channel while assisting in the heat insulation effect; at the same time, the thermal insulation cotton can significantly weaken the heat exchange between the exhaust main channel and the adjacent intake main channel, and simultaneously reduce the heat directly transmitted from the combustion chamber, thereby increasing the temperature difference between the combustion chamber and the adjacent exhaust main channel and between the exhaust main channel and the adjacent exhaust main channel, reducing the heat energy loss during the transfer process, and can also increase the temperature difference of the one-way heat absorption channel in the adjacent exhaust main channel, thereby optimizing the efficiency of heat energy absorption.

[0026] In a second aspect, the present application also provides a power generation device;

[0027] A power generation device includes a generator, a drive assembly and a liquid supply assembly for providing and storing liquid refrigerant, the drive assembly includes a drive box, a drive pipe fixedly connected to the inside of the drive box and a drive turbine rotatably arranged in the drive pipe, the steam refrigerant output end of the one-way heat absorption channel is connected to one end of the drive pipe and is used to drive the drive turbine to rotate, the power input shaft of the generator is coaxially fixedly connected to the drive turbine, the refrigerant output end of the drive box is connected to the input end of the liquid supply assembly, the output end of the liquid supply assembly is connected to the refrigerant input end of the one-way heat absorption channel, and the refrigerant input end portion of the one-way heat absorption channel is arranged in the drive box and is used to absorb heat energy.

[0028] By adopting the above technical solution, after the evaporated refrigerant enters the drive pipe, it drives the drive turbine to rotate, and the rotating turbine is used to provide power for the generator; at the same time, the refrigerant exhaust gas after driving the drive turbine to rotate enters the drive box. At this time, since the contact area with the outside is increased and part of the one-way heat absorption channel is arranged in the drive box, the heat energy of the exhaust gas can be further utilized for preheating treatment, and the steam refrigerant in the drive box is condensed and finally returned to the liquid supply component.

[0029] Optionally, an air guide cone is provided in the driving tube, the tip of the air guide cone is directed toward the refrigerant input end of the driving tube and is used to guide the refrigerant toward the outer edge of the driving turbine.

[0030] By adopting the above technical solution, the air guide cone will reduce the space for the steam refrigerant to flow in the driving pipe, which is used to accelerate the steam refrigerant. At the same time, it can also guide the steam refrigerant toward the outer edge of the driving turbine, thereby increasing the force arm that drives the driving turbine to rotate.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] During use, the liquid refrigerant output by the liquid supply assembly first enters the drive box for preheating and then enters the combustion chamber for evaporation. At the same time, the fuel enters the combustion chamber through the fuel channel and is burned in conjunction with the air flowing into the intake duct during this process. After the fuel is burned, the exhaust channel is a three-dimensional closed surface structure, and the exhaust gas is discharged only through the connecting channel. At this time, the heat energy generated by the combustion can be relatively fully retained in the combustion chamber. During the reciprocating flow through the exhaust channel, it fully contacts the one-way heat absorption channel and absorbs heat energy through the one-way heat absorption channel, causing the refrigerant in the one-way heat absorption channel to evaporate. Thereafter, the heat energy is utilized by the evaporated refrigerant, such as to generate electricity or steam. In addition, since the exhaust main channel is arranged in multiple layers, it can also have an insulation effect on the combustion chamber to further reduce the direct loss of heat energy. Finally, the evaporated refrigerant enters the drive pipe to drive the drive turbine to rotate, which is used to provide power for the generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic cross-sectional structural diagram of Example 1 of the present application.

[0034] Figure 2 It is a schematic cross-sectional structural diagram of the heat absorption component in Example 1 of the present application.

[0035] Figure 3 It is a schematic cross-sectional structural diagram of Example 2 of the present application.

[0036] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of part A.

[0037] Figure 5 It is a structural diagram of Example 3 of the present application.

[0038] Figure 6 It is a schematic diagram of the partial cross-sectional structure in Example 3 of the present application.

[0039] Explanation of reference numerals: 1, combustion chamber; 10, insulation layer; 11, air inlet; 111, main air inlet; 112, air inlet connecting channel; 113, air pump; 12, fuel channel; 121, fuel pipe; 122, igniter; 13, exhaust channel; 131, main exhaust channel; 132, connecting channel; 14, combustion chamber; 15, chamber body; 16, connecting strip; 161, connecting strip body; 162, limiting hole; 17, connecting piece; 171, Connecting rod; 172, limiting part; 173, positioning part; 2, one-way heat absorption channel; 21, heat absorption part; 22, connecting part; 23, heat absorption assembly; 231, heat absorption tube; 232, heat absorption plate; 233, heat absorption hole; 3, generator; 4, drive assembly; 41, drive box; 42, drive tube; 43, drive turbine; 44, air guide cone; 5, liquid supply assembly; 51, liquid supply box; 511, pressure relief valve; 52, output pump; 53, one-way valve. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-6 This application is described in further detail.

[0041] Example 1

[0042] The embodiment of the present application discloses a combustion chamber. Figure 1 A combustion chamber includes a combustion chamber 1 and a one-way heat absorption channel 2 for one-way circulation of refrigerant. The combustion chamber 1 is provided with an air inlet duct 11, a fuel channel 12 and an exhaust channel 13. The air inlet duct 11 is used to introduce external air into the combustion chamber 1. The fuel channel 12 is a one-way flow and is used to introduce external fuel into the combustion chamber 1, so as to cooperate with the air introduced by the air inlet duct 11 for combustion. The exhaust channel 13 is used to discharge the exhaust gas generated after combustion in a timely manner and reduce the impact on subsequent fuel combustion. The fuel channel 12 includes a fuel pipe 121 and an igniter 122 installed on the fuel pipe 121. The fuel pipe 121 is used to introduce external fuel, such as gas, etc.; and the igniter 122 is used to ignite the introduced fuel.

[0043] Reference Figure 1Specifically, the exhaust channel 13 includes several exhaust main channels 131 and connecting channels 132. The inner and outer walls of the exhaust main channels 131 each have a three-dimensional surface structure, such as a spherical structure. The exhaust main channels 131 are arranged one after another from the outside inward, and the exhaust main channels 131 are connected to each other from the inside out through the connecting channels 132. This allows exhaust gas generated after combustion to alternately pass through different exhaust main channels 131 from the inside out through the connecting channels 132. A combustion chamber 14 is formed inside the innermost exhaust main channel 131 to provide fuel combustion.

[0044] That is, the same exhaust main channel 131 is connected to two connecting channels 132. One connecting channel 132 connects to the adjacent combustion chamber 14 or the exhaust main channel 131 on the inside, while the other connecting channel 132 connects to the adjacent exhaust main channel 131 on the outside or to the outside space for air extraction. The two connecting channels 132 on the same exhaust main channel 131 are located at opposite ends of the combustion chamber 1 along the direction from which external air enters the combustion chamber 1.

[0045] Reference Figure 1 The intake passage 11 includes a plurality of intake main passages 111 and an intake connecting passage 112. The inner and outer walls of the intake main passages 111 also have a three-dimensional surface structure, such as a spherical structure. The plurality of intake main passages 111 are arranged one after another from the outside to the inside, and the intake main passages 111 and the exhaust main passages 131 are alternately arranged from the outside to the inside and are connected to each other through the intake connecting passages 112. This allows external air to first pass through the intake connecting passages 112 from the outside to the inside, then through the plurality of intake main passages 111, and then enter the combustion chamber 14 to facilitate fuel combustion.

[0046] Preferably, in order to form the intake duct 11 and the exhaust duct 13, the interior of the combustion chamber 1 is provided with a plurality of chamber bodies 15 which are sequentially arranged from the outside to the inside. The inner and outer walls of the chamber bodies 15 are both spherical structures, so that a plurality of gaps are formed between the chamber bodies 15 and adjacent chamber bodies 15, and between the outermost chamber body 15 and the inner wall of the combustion chamber 1. The exhaust main channel 131 and the intake main channel 111 are both formed in the gap between two adjacent chamber bodies 15, and the combustion chamber 14 is formed in the inner cavity of the innermost chamber body 15. Among them, the fuel pipe 121 is provided at one end corresponding to the exhaust gas outlet of the combustion chamber 1, and the fuel pipe 121 is passed through and fixedly connected to the combustion chamber 1 and the chamber body 15, so as to be used to introduce external fuel while assisting in the fixed connection of the plurality of chamber bodies 15 to the combustion chamber 1.

[0047] Reference Figure 1The connecting channel 132 and the air intake connecting channel 112 are both pipes, and the air intake connecting channel 112 is arranged coaxially with the fuel pipe 121. The air intake connecting channel 112 connected to the outer wall of the chamber 15 corresponding to the outermost air intake channel 111 passes through the combustion chamber 1 and communicates with the outside. The air intake connecting channel 112 connected to the outside is equipped with an air pump 113 for introducing external gas. The remaining air intake connecting channels 112 are respectively fixed at both ends and connected to the two sides of the chamber 15 between two adjacent air intake channels 111, which are separated by two opposite sides. The innermost air intake connecting channel 112 is arranged outside the fuel pipe 121 to ensure relatively thorough mixing of the fuel and external air for combustion.

[0048] The connecting channel 132 is composed of at least one pipe. In the embodiment of the present application, the outermost connecting channel 132 is composed of a pipe and is positioned over the outermost intake connecting channel 112. This connecting channel 132 is fixed to and connected to the outermost tank body 15. The remaining connecting channels 132 are configured as two pipes arranged around the central axis of the fuel pipe 121. The ends of the connecting channels 132 are respectively fixed to and connected to the two away sides of the tank body 15 between two adjacent exhaust main channels 131. The connecting channels 132 and the intake connecting channel 112 connected to the same tank body 15 are located at the two ends of the tank body 15 along the axial direction of the fuel pipe 121.

[0049] Furthermore, the one-way heat absorption channel 2 has a tubular structure, with both ends located outside the combustion chamber 1, while the middle portion of the one-way heat absorption channel 2 is located inside the combustion chamber 1. The portion of the one-way heat absorption channel 2 located inside the combustion chamber 1 includes a plurality of heat absorption sections 21 and a connection section 22. The plurality of heat absorption sections 21 are disposed one-to-one within the exhaust main channel 131, and the heat absorption sections 21 are arranged spirally around the inner wall of the exhaust main channel 131. The innermost heat absorption section 21 is disposed within the combustion chamber 14 to directly absorb the heat energy generated by the fuel combustion. The ends of the heat absorption section 21 are located at the axial ends of the chamber body 15 along the fuel pipe 121, and are fixed to and connected to different connection sections 22. One end of the heat absorption section 21 is connected to the adjacent heat absorption section 21 on the outside through the connection section 22, while the other end of the heat absorption section 21 is connected to the adjacent heat absorption section 21 on the inside through a different connection section 22. Among them, the connecting part 22 is located on the inner side of the connecting channel 132, so as to realize comprehensive heating treatment of the part of the one-way heat absorption channel 2 located in the combustion chamber 1 during the discharge of the fuel combustion exhaust gas; and the fuel enters through the outermost heat absorption part 21 and passes through the combustion chamber 1 from the output end of the innermost heat absorption part 21.

[0050] Reference Figure 1 and Figure 2To further optimize the absorption of heat energy generated by fuel combustion within the combustion chamber 14, a heat absorption assembly 23 is provided between the output and input ends of the innermost heat absorption section 21. The heat absorption assembly 23 comprises a plurality of heat absorption tubes 231 and two heat absorption plates 232, each of which is hollow. The ends of the heat absorption tubes 231 are fixed to and connected to the two heat absorption plates 232, respectively. The surfaces of the two heat absorption plates 232, which are spaced apart from each other, are connected to the output and input ends of the innermost heat absorption section 21. The heat absorption plates 232 are provided with a plurality of heat absorption holes 233 for the passage of combustion exhaust gas, thereby further absorbing the exhaust gas generated during the fuel combustion process through the heat absorption tubes 231.

[0051] The outer wall of the combustion chamber 1 is coated with an insulation layer 10 made of a high-temperature resistant material. Insulation layers 10 are also provided on the inner walls of the combustion chamber 14 and the inner walls of the exhaust main duct 131. The insulation layer 10 can be made of asbestos, fiberglass cloth, or a high-temperature resistant insulation coating to further reduce heat exchange between the interior and exterior of the combustion chamber 1.

[0052] The implementation principle of Example 1 is as follows: during use, fuel is input into the combustion chamber 14 through the fuel pipe 121, while external air enters the combustion chamber 14 through the main air intake channel 111 and the air intake connecting channel 112. During the process of entering the combustion chamber 14, the fuel is ignited by the igniter 122. At this time, the one-way heat absorption channel 2 allows the external refrigerant to enter. After the fuel burns, it directly heats the heat absorption portion 21 located at the innermost side, evaporating the refrigerant. At the same time, because the chamber 15 is a relatively closed structure, the heat energy generated by the fuel can be effectively reduced from being directly lost through heat exchange. Furthermore, the exhaust gas is discharged into the main exhaust channel 131 through the innermost connecting channel 132, and then successively transported to the outside through the main exhaust channel 131. During this process, the gaps between the chambers 15 arranged at intervals have a certain insulation effect.

[0053] At the same time, the heat absorption portion 21 disposed within the exhaust main channel 131 can also relatively fully absorb the heat energy carried by the exhaust gas generated by combustion during its discharge. Furthermore, because the inner and outer walls of the exhaust main channel 131 are both spherical structures, the temperature difference between two adjacent exhaust main channels 131 during combustion is relatively small. Even if heat energy is transferred to adjacent exhaust main channels 131, it can still be absorbed by the heat absorption portion 21 and the connecting portion 22, achieving the effect of closed absorption of the heat energy generated during the fuel combustion process. Furthermore, because the refrigerant flows back and forth from the outside to the inside, the exhaust gas in the outermost exhaust main channel 131 can still maintain a temperature difference with the refrigerant in the corresponding heat absorption portion 21, and is gradually heated from the outside to the inside, further achieving sufficient absorption of heat energy.

[0054] Finally, since the main intake channel 111 and the main exhaust channel 131 are arranged alternately, the heat energy of the chamber 15 can be transferred to gradually heat the air required for combustion from the outside to the inside. By preheating the incoming air multiple times, the combustion temperature of the fuel in the combustion chamber 14 is increased.

[0055] Example 2

[0056] Reference Figure 3 and Figure 4 The difference between this embodiment and embodiment 1 is that a plurality of connecting strips 16 are provided in both the exhaust main channel 131 and the intake main channel 111, so as to support the two adjacent bin bodies 15 and assist in guiding the incoming gas.

[0057] Reference Figure 3 and Figure 4 Specifically, the ends of the connecting strip 16 correspond to the ends of the housing 15 along the axial direction of the fuel pipe 121. The connecting strip 16 includes two connecting strip bodies 161. The contours of the connecting strip bodies 161 are curved and conform to the contours of the inner and outer walls of the intake main channel 111 or exhaust main channel 131. The two connecting strip bodies 161 are arranged along the combustion chamber from the inside out. The edges of the two connecting strip bodies 161 facing each other are spliced together, and the edges of the two connecting strip bodies 161 facing away from each other are respectively arranged to fit the inner and outer walls of the intake main channel 111 or exhaust main channel 131.

[0058] The joint of the two connecting strip bodies 161 is provided with a restricting hole 162. The restricting hole 162 comprises openings formed along the opposing edges of the two connecting strip bodies 161. This restricting hole 162 allows for the sequential installation of the connecting strip bodies 161, the heat absorbing portion 21, and the remaining connecting strip body 161 when installing the housing 15 from the inside out. This reduces the possibility of interference with the one-way heat absorbing channel 2 while also positioning the heat absorbing portion 21 through the restricting hole 162. The connecting strip bodies 161 are grid-plate structures, facilitating the spiral flow of exhaust gas through the heat absorbing portion 21 within the exhaust main duct 131. The obstruction of the connecting strip bodies 161 reduces temperature stratification caused by the spiral flow of exhaust gas, thereby achieving effective positioning and assisting installation. Furthermore, the restricting hole 162 helps optimize the heat absorption of exhaust gas by the heat absorbing portion 21 and optimizes the absorption of exhaust gas energy from the adjacent exhaust main duct 131 by the intake main duct 111.

[0059] Specifically, in order to fix the bin bodies 15 to each other through the connecting bars 16 , the connecting bars 16 are further provided with a plurality of connecting pieces 17 .

[0060] Reference Figure 3 and Figure 4The connecting member 17 includes a connecting rod 171, a restricting portion 172, and a tubular positioning portion 173. The connecting rod 171, restricting portion 172, and positioning portion 173 are arranged coaxially, and the facing ends of the connecting rod 171 and positioning portion 173 are fixedly connected to the restricting portion 172. Several connecting members 17 corresponding to the same position on the connecting strip 16 are distributed axially. The connecting rod 171 penetrates one of the bin bodies 15 and is threadedly connected to the outer wall of the bin body 15 on the inner side of the penetrated bin body 15, or is threadedly connected to the positioning portion 173 of the inner connecting member 17. Simultaneously, the restricting portion 172 abuts against the outer wall of the bin body 15 to compress the bin body 15. The two ends of the positioning portion 173 respectively abut against the inner and outer walls of the intake main duct 111; or the two ends of the positioning portion 173 respectively abut against the inner and outer walls of the exhaust main duct 131, to maintain the spacing between two adjacent bin bodies 15. The positioning portion 173 is disposed through the two connecting bar bodies 161 to position the connecting bar bodies 161 .

[0061] The working principle of Example 2 is as follows: during use, the connecting bar body 161 can be used to support the inner walls of two adjacent chambers 15. Furthermore, during installation, the connecting bar body 161 can be installed one by one to reduce the impact on the installation of the heat absorbing portion 21. Furthermore, the positioning portion 173 can be used to position the distance between two adjacent chambers 15.

[0062] Example 3

[0063] Reference Figure 5 and Figure 6 This embodiment also discloses a power generation device, comprising a generator 3, a drive assembly 4, and a liquid supply assembly 5 for supplying liquid refrigerant and recovering evaporated refrigerant. The drive assembly 4 is configured to cooperate with the steam delivered by the one-way heat absorption channel 2 to provide power for the generator 3 to generate electricity.

[0064] Specifically, the drive assembly 4 includes a drive housing 41, a drive tube 42, and a drive turbine 43 rotatably disposed within the drive tube 42. The drive tube 42 is located inside the drive housing 41, with one end of the drive tube 42 fixedly connected to the inner wall of the drive housing 41. The end of the one-way heat absorption channel 2, located outside the combustion chamber 1 and outputting the evaporated refrigerant, serves as the output end. The output end of the one-way heat absorption channel 2 is fixedly connected to and communicates with the end of the drive tube 42 fixedly connected to the inner wall of the drive housing 41. The other end of the one-way heat absorption channel 2 is disposed toward the inside of the drive housing 41.

[0065] Reference Figure 5 and Figure 6The driving turbine 43 is coaxially connected to the driving tube 42, and the generator 3 is arranged on the outside of the driving box 41. The power input end of the generator 3 is coaxially fixedly connected to the driving turbine 43 through the transmission shaft, so that when the evaporating refrigerant drives the driving turbine 43 to rotate, the power can be synchronously transmitted to the generator 3 and used for the generator 3 to generate electricity.

[0066] The liquid supply assembly 5 includes a liquid supply tank 51, an output pump 52, and a one-way valve 53. The liquid supply tank 51 is used to store liquid refrigerant, and the output pump 52 is connected to the interior of the liquid supply tank 51 via a pipeline and is used to discharge the liquid refrigerant. The output end of the output pump 52 is fixed and connected to the input end of the one-way heat absorption channel 2, and the one-way heat absorption channel 2 is partially located within the drive box 41. The portion of the one-way heat absorption channel 2 located within the drive box 41 is spirally arranged around the drive pipe 42 to absorb the heat energy of the refrigerant after driving the turbine 43. This not only preheats the refrigerant in the one-way heat absorption channel 2 before entering the combustion chamber 1, but also condenses the refrigerant within the drive box 41. The bottom of the drive box 41 is connected to the interior of the liquid supply tank 51 via a pipeline, allowing partially condensed liquid refrigerant to flow back into the liquid supply tank 51; at the same time, uncondensed liquid refrigerant can re-enter the liquid supply tank 51 for secondary condensation. The one-way heat absorption channel 2 is also provided with a one-way valve 53 to allow the refrigerant to flow in one direction.

[0067] Reference Figure 5 and Figure 6 At the same time, a pressure relief valve 511 is installed on the top of the liquid supply tank 51 to reduce the possibility of damage to the equipment due to excessive pressure. An air guide cone 44 is rotatably installed in the drive tube 42. The air guide cone 44 is arranged coaxially with the drive tube 42, and the tip of the air guide cone 44 is arranged toward the refrigerant input end of the drive tube 42 to guide the evaporated refrigerant to the outer edge of the drive turbine 43, thereby increasing the lever arm when driving the drive turbine 43 to rotate. Among them, the large end of the air guide cone 44 is coaxially fixedly connected to the end of the drive turbine 43 facing the input end of the drive tube 42.

[0068] Finally, the outer wall of the driving box 41 is also covered with a thermal insulation layer 10 for heat preservation.

[0069] The implementation principle of Example 3 is as follows: after the evaporated refrigerant in the one-way heat absorption channel 2 enters the drive pipe 42, it flows toward the outer edge of the drive turbine 43 under the action of the air guide cone 44. Due to the reduction in the flow space, the evaporated refrigerant is accelerated and flows toward the outer edge of the drive turbine 43, thereby driving the drive turbine 43 to rotate and providing power for the generator 3 to generate electricity; thereafter, the evaporated refrigerant enters the drive box 41, undergoes initial pressure relief, and at the same time, absorbs heat energy from the one-way heat absorption channel 2 to achieve initial condensation. The liquid refrigerant after initial condensation and the gaseous refrigerant that has not condensed in time enter the liquid supply tank 51 through the pipeline and undergo secondary condensation. At the same time, when in use, the output pump 52 extracts the liquid refrigerant in the liquid supply tank 51 and transports it to the one-way heat absorption channel 2; and after being preheated by the drive box 41, it is heated and evaporated in the input combustion chamber 1 to drive the drive turbine 43 to rotate.

[0070] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A combustion chamber, characterized in that: The invention comprises a combustion chamber (1) and a one-way heat absorption channel (2) for one-way circulation of refrigerant, wherein the combustion chamber (1) is provided with an air inlet (11) for introducing air, a fuel channel (12) for introducing fuel and cooperating with the introduction of air for combustion, and an exhaust channel (13) for exhausting combustion waste gas; The exhaust channel (13) includes a plurality of exhaust main channels (131) and a connecting channel (132). The inner wall and the outer wall of the exhaust main channel (131) are both three-dimensional closed surface structures. The plurality of exhaust main channels (131) are arranged one after another from the inside to the outside and are connected one after another through the connecting channel (132). A combustion chamber (14) for fuel combustion is formed on the inner side of the innermost exhaust main channel (131), and the two are connected to each other. The one-way heat absorption channel (2) is spirally arranged from the outside to the inside in the exhaust main channel (131), and both ends of the one-way heat absorption channel (2) are located outside the combustion chamber (1); The portion of the one-way heat absorption channel (2) located in the combustion chamber (1) includes a plurality of heat absorption portions (21) and a connecting portion (22). The heat absorption portion (21) is spirally arranged in the exhaust main channel (131) and the combustion chamber (14), and the plurality of heat absorption portions (21) are connected sequentially through the connecting portion (22) from the outside to the inside. The air intake passage (11) includes a plurality of air intake main passages (111) and an air intake connecting passage (112), wherein the air intake main passages (111) are in a three-dimensional closed planar structure, and the plurality of air intake main passages (111) are arranged one after another from the outside to the inside and are connected through the air intake connecting passage (112); and the plurality of air intake main passages (111) and exhaust main passages (131) are alternately distributed from the outside to the inside and are connected one after another through the air intake connecting passage (112); A heat absorbing assembly (23) is provided between the output end and the input end of the innermost heat absorbing portion (21). The heat absorbing assembly (23) comprises a plurality of heat absorbing tubes (231) and two heat absorbing plates (232). The interior of the heat absorbing plates (232) is hollow. The two ends of the heat absorbing tubes (231) are respectively fixed and connected to the two heat absorbing plates (232). The side surfaces of the two heat absorbing plates (232) that are away from each other are respectively connected to the output end and the input end of the innermost heat absorbing portion (21). The heat absorbing plates (232) are provided with a plurality of heat absorbing holes (233) for the combustion exhaust gas to pass through.

2. A combustion chamber according to claim 1, characterized in that: The two connecting channels (132) communicating with the exhaust main channel (131) are respectively located at two opposite ends of the exhaust main channel (131).

3. A combustion chamber according to claim 1, characterized in that: The combustion chamber (1) is provided with a plurality of chamber bodies (15) which are successively sleeved from the outside to the inside. The chamber bodies (15) are in a three-dimensional closed planar structure. The exhaust main channel (131) and the intake main channel (111) are both formed in the gap between two adjacent chamber bodies (15). The connecting channel (132) and the intake connecting channel (112) are both pipes. The connecting channel (132) is provided through the intake main channel (111) and is connected to two adjacent exhaust main channels (131). The intake connecting channel (112) is provided through the exhaust main channel (131) and is connected to two adjacent intake main channels (111).

4. A combustion chamber according to claim 3, characterized in that: A plurality of connecting strips (16) are provided in both the exhaust main channel (131) and the intake main channel (111), the one-way heat absorption channel (2) is passed through the connecting strips (16), the connecting strips (16) are connected to two adjacent bin bodies (15), and the two ends of the connecting strips (16) are provided corresponding to the input end and the output end of the exhaust main channel (131) or the intake main channel (111) inside the bin body (15).

5. A combustion chamber according to claim 4, characterized in that: The connecting strip (16) comprises two connecting strip bodies (161) distributed along the combustion chamber (14) from the inside to the outside, the two connecting strip bodies (161) being spliced together, and a limiting hole (162) for the one-way heat absorption channel (2) to pass through is provided at the splicing seam.

6. A combustion chamber according to claim 4, characterized in that: The connecting strip (16) is provided with a connecting piece (17), and the connecting piece (17) includes a connecting rod (171), a limiting portion (172) and a positioning portion (173) in a tubular structure. The connecting rod (171) and the positioning portion (173) are arranged on the same central axis and their facing ends are fixedly connected to the limiting portion (172). The connecting rod (171) is passed through the warehouse body (15) and is threadedly connected to the positioning portion (173) of the connecting piece (17) inside the warehouse body (15) or fixedly connected to the outer wall of the innermost warehouse body (15). The limiting portion (172) abuts against the outer wall of the warehouse body (15); and the positioning portion (173) abuts against two adjacent warehouse bodies (15).

7. A combustion chamber according to claim 1, characterized in that: The refrigerant passes through the outermost exhaust main channel (131) and then enters the inner exhaust main channel (131) and then enters the combustion chamber (14), and is used to heat the refrigerant from the outside to the inside in the combustion chamber (1); and the inner walls of the exhaust main channel (131) and the combustion chamber (14) are both provided with a heat-insulating layer (10).

8. A power generation device using the combustion chamber according to any one of claims 1 to 7, characterized in that: The invention comprises a generator (3), a drive assembly (4) and a liquid supply assembly (5) for providing and storing liquid refrigerant, wherein the drive assembly (4) comprises a drive box (41), a drive pipe (42) fixedly connected to the inside of the drive box (41) and a drive turbine (43) rotatably arranged in the drive pipe (42), the steam refrigerant output end of the one-way heat absorption channel (2) is connected to one end of the drive pipe (42) and is used to drive the drive turbine (43) to rotate, the power input shaft of the generator (3) is coaxially fixedly connected to the drive turbine (43), the refrigerant output end of the drive box (41) is connected to the input end of the liquid supply assembly (5), the output end of the liquid supply assembly (5) is connected to the refrigerant input end of the one-way heat absorption channel (2), and the refrigerant input end portion of the one-way heat absorption channel (2) is arranged in the drive box (41) and is used to absorb heat energy.

9. The power generation device according to claim 8, characterized in that: An air guide cone (44) is provided in the driving tube (42), the tip of the air guide cone (44) faces the refrigerant input end of the driving tube (42) and is used to guide the refrigerant toward the outer edge of the driving turbine (43).

Citation Information

Patent Citations

  • Combustion chamber and power generation device

    CN219624003U