Laminated combustion chamber transition section

Abstract

This invention provides a transition section for a laminated-plate cooled combustion chamber. The transition section includes a transition section body and a lattice. The wall of the transition section body is provided with cooling channels that extend along the direction of gas flow within the cavity of the transition section body. The lattice is disposed within the cooling channels to create turbulence in the cooling medium flowing within them. The laminated-plate cooled combustion chamber transition section of this invention uses a lattice within the cooling channels to reduce the amount of cooling medium used and enhances the cooling effect of the cooling medium through the turbulence effect of the lattice.

Description

Technical Field

[0001] This invention relates to the field of gas turbines, and more specifically to a plate-cooled combustion chamber transition section. Background Technology

[0002] A gas turbine mainly consists of three components: a compressor, a combustion chamber, and a turbine. Compressed air generated by the compressor is discharged into the combustion chamber and mixed with fuel for combustion. The resulting high-temperature gas is then transported to the turbine through a transition section in the combustion chamber to perform work. In related technologies, the transition section of the combustion chamber is cooled using a plate-and-layer cooling method. In other words, cooling channels are set between the plates, and the gas flows through these channels for heat exchange, resulting in cooling. However, plate-and-layer cooling requires a large flow area, necessitating a large amount of cooling gas. Furthermore, the gas flows directly through the cooling channels, resulting in a simple gas flow path and poor heat exchange efficiency. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art. To this end, embodiments of the present invention propose a layered cooling combustion chamber transition section, which incorporates a lattice within the cooling channel. The lattice reduces the amount of cooling medium used and enhances the cooling effect of the cooling medium through its turbulent flow effect.

[0004] The transition section of the plate-cooled combustion chamber in this embodiment of the invention includes:

[0005] The transition section body has cooling channels on its wall surface, and the cooling channels extend along the direction of gas flow in the inner cavity of the transition section body.

[0006] A crystal lattice is disposed within the cooling channel to cause turbulence in the cooling medium flowing within the cooling channel.

[0007] In the transition section of the plate-cooled combustion chamber of this invention, a lattice is set in the cooling channel. The lattice occupies part of the space of the cooling channel to reduce the amount of cooling medium used. At the same time, the cooling medium flowing in the cooling channel will generate turbulence when passing through the lattice, thereby increasing the residence time of the cooling medium in the cooling channel and increasing the complexity of the flow path of the cooling medium, so as to enhance the heat exchange and cooling effect of the cooling medium.

[0008] In some embodiments, the wall surface of the transition section body includes an outer wall, a sandwich wall, and an inner wall, wherein the sandwich wall is provided with the cooling channel, and the cooling channel and the sandwich wall are connected between the outer wall and the inner wall.

[0009] In some embodiments, the outer wall is provided with a cooling medium inlet, the inner wall is provided with a cooling medium outlet, the cooling medium inlet and the cooling medium outlet are arranged at intervals along the direction of gas flow in the inner cavity of the transition section body, and the cooling channel is connected between the cooling medium inlet and the cooling medium outlet.

[0010] In some embodiments, the lattice completely fills the cooling channel.

[0011] In some embodiments, the lattice comprises a plurality of sublattices, wherein at least a portion of the sublattices are sequentially connected in a row along the extension direction of the cooling channel.

[0012] In some embodiments, the lattice has a plurality of sublattices on the cross-section of the cooling channel, and each sublattice on the cross-section corresponds to a row of sublattices.

[0013] In some embodiments, the cross-sectional shape of the lattice is a rectangle that matches the cross-sectional shape of the cooling channel.

[0014] In some embodiments, the sublattice includes a plurality of main baffles, at least one end of each main baffle is a connecting portion, all the connecting portions of the sublattice are located on the same virtual polyhedron, and the connecting portions are used to connect the channel wall of the cooling channel and / or another sublattice.

[0015] In some embodiments, one end of the main spoiler is the connecting portion, and the other end of the main spoiler is connected to at least one of the other main spoilers.

[0016] In some embodiments, the sublattice further includes a plurality of secondary spoilers connected between two of the main spoilers, or connected between the main spoilers and at least one of the other secondary spoilers. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the transition section of the plate-cooled combustion chamber according to an embodiment of the present invention. Figure 1 ;

[0018] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle;

[0019] Figure 3 This is a schematic diagram of the transition section of the plate-cooled combustion chamber according to an embodiment of the present invention. Figure 2 ;

[0020] Figure 4 yes Figure 3 Enlarged schematic diagram of part B;

[0021] Figure 5 This is a schematic diagram of the structure of the first embodiment of the sublattice in this invention;

[0022] Figure 6 This is a schematic diagram of the structure of a second embodiment of the sublattice in this invention;

[0023] Figure 7 This is a schematic diagram of the structure of the third embodiment of the sublattice in this invention;

[0024] Figure 8 This is a schematic diagram of the structure of the fourth embodiment of the sublattice in this invention;

[0025] Figure 9 This is a schematic diagram of the structure of the fifth embodiment of the sublattice in this invention;

[0026] Figure 10 This is a schematic diagram of the structure of the sixth embodiment of the sublattice in this invention;

[0027] Figure 11 This is a schematic diagram of the structure of the first embodiment of the crystal lattice in this invention;

[0028] Figure 12 This is a schematic diagram of the structure of a second embodiment of the crystal lattice in this invention.

[0029] Figure label:

[0030] 1. Transition section body; 11. Cooling channel; 12. Outer wall; 13. Intermediate wall; 14. Inner wall; 2. Crystal lattice; 21. Sub-lattice; 22. Main baffle bar; 221. First main baffle bar; 222. Second main baffle bar; 23. Connecting part; 24. Secondary baffle bar. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] The following is for reference. Figures 1-12 The transition section of the laminated cooling combustion chamber according to an embodiment of the present invention is described.

[0033] like Figures 1-12 As shown, the transition section of the plate-cooled combustion chamber in this embodiment of the invention includes a transition section body 1 and a lattice body 2.

[0034] The wall of the transition section body 1 is provided with a cooling channel 11, which extends along the direction of gas flow in the inner cavity of the transition section body 1. A lattice 2 is disposed in the cooling channel 11 to generate turbulence in the cooling medium flowing in the cooling channel 11.

[0035] like Figures 1-4 As shown, the transition section body 1 is preferably an irregular annular shell, and the high-temperature combustion gas passes through the inner cavity of the transition section body 1. Preferably, as shown in the figure... Figure 1 As shown, the inner cavity of the transition section body 1 extends vertically. Cooling channels 11 are provided within the wall of the annular shell, extending vertically to facilitate the passage of cooling medium and heat exchange. Preferably, multiple cooling channels 11 are arranged circumferentially around the transition section body 1 to ensure cooling effect and strength. A lattice body 2 is disposed within the cooling channels 11, having multiple turbulence-prone sections. A flow channel is formed between adjacent turbulence-prone sections. When the cooling medium flows within the cooling channels 11, it passes through the flow channel of the lattice body 2, generating turbulence as it passes through. This increases the residence time of the cooling medium within the cooling channels 11 and increases the complexity of the cooling medium's flow path, thereby enhancing the heat exchange and cooling effect. The cooling medium is preferably a gas.

[0036] In the transition section of the plate-cooled combustion chamber of this invention, a lattice is set in the cooling channel. The lattice occupies part of the space of the cooling channel to reduce the amount of cooling medium used. At the same time, the cooling medium flowing in the cooling channel will generate turbulence when passing through the lattice, thereby increasing the residence time of the cooling medium in the cooling channel and increasing the complexity of the flow path of the cooling medium, so as to enhance the heat exchange and cooling effect of the cooling medium.

[0037] In some embodiments, the lattice 2 completely fills the cooling channel 11.

[0038] like Figures 1-4 As shown, the channel walls of the cooling channel 11 are all connected to the crystal lattice 2. The length of the crystal lattice 2 is consistent with and matches the length of the cooling channel 11. The cooling medium is always located within the crystal lattice 2 when it is in the cooling channel 11. This enhances the heat exchange and cooling effect of the cooling medium.

[0039] It is understood that the lattice is not limited to completely filling the cooling channel. In other embodiments, the length of the lattice is less than the length of the cooling channel, and the lattice is located at the entrance of the cooling channel.

[0040] In some embodiments, the lattice 2 includes a plurality of sublattices 21, wherein at least some of the sublattices 21 are sequentially connected in a row along the extension direction of the cooling channel 11.

[0041] like Figures 5-11As shown, the crystal lattice 2 includes a plurality of sub-lattices 21, wherein at least some of the sub-lattices 21 are sequentially connected in rows along the extending direction of the cooling channel 11. In other words, the crystal lattice 2 includes several rows of sub-lattices 21, and each row of sub-lattices 21 includes a plurality of sub-lattices 21 sequentially connected along the extending direction of the cooling channel 11. Figure 11 In the embodiment shown, the crystal lattice 2 is a row of sub-lattices 21.

[0042] Each sub-lattice 21 has multiple turbulence sections and flow channels. Therefore, each sub-lattice 21 plays a turbulence role on the passing cooling medium. When the cooling medium flows in the cooling channel 11, it passes through multiple sub-lattices 21 in sequence. Turbulence is generated when passing through each sub-lattice 21, thereby effectively increasing the residence time of the cooling medium in the cooling channel and effectively increasing the complexity of the cooling medium flow path.

[0043] In some embodiments, the lattice 2 has a plurality of sub-lattices 21 on the cross-section of the cooling channel 11, and each sub-lattice 21 on the cross-section corresponds to a row of sub-lattices 21.

[0044] like Figure 4 and Figure 12 As shown, the lattice body 2 has multiple sub-lattices 21 on the cross-section of the cooling channel 11. Each sub-lattice 21 on the cross-section corresponds to a row of sub-lattices 21. In other words, the lattice body 2 has multiple rows of sub-lattices 21. The multiple rows of sub-lattices 21 are connected and arranged in the transverse direction of the cooling channel 11 to completely fill the cross-section of the cooling channel 11.

[0045] Since each sub-lattice 21 has a turbulent effect on the passing cooling medium, the cooling medium is simultaneously subjected to the turbulent effect of multiple sub-lattices 21 on the cross-section of the cooling channel 11, thereby further increasing the residence time of the cooling medium in the cooling channel and further increasing the complexity of the cooling medium flow path.

[0046] Multiple sublattices 21 on the cross-section can be arranged along a straight line or in an array. In other words, multiple rows of sublattices 21 can be arranged as a single layer or as multiple layers. The sublattices 21 employ... Figure 6 In the embodiment shown, when the cooling channel 11 is configured as a single layer, the average Nusselt number increases by 38%-42%, which can reduce the wall temperature of the transition section body 1 by 18°C-22°C. When the lattice 2 is a three-layer sublattice 21, the average Nusselt number of the cooling channel 11 increases by 68%-72%, which can reduce the wall temperature of the transition section body 1 by 28°C-32°C. Therefore, as the number of sublattice 21 layers of the lattice 2 increases, both the average Nusselt number of the cooling channel 11 and the reduction in wall temperature of the transition section body 1 increase.

[0047] Meanwhile, since the crystal lattice 2 is composed of multiple sub-lattices 21 connected together, the shape and volume of the sub-lattices 21 can be adjusted by changing the number and position of the sub-lattices 21, which facilitates the production, processing and installation of the crystal lattice 2.

[0048] In some embodiments, the cross-sectional shape of the lattice 2 is rectangular, which matches the cross-sectional shape of the cooling channel 11. This facilitates the fabrication of the cooling channel 11 and the installation of the lattice 2, and ensures that the lattice 2 completely fills the cooling channel 11.

[0049] In some embodiments, the sublattice 21 includes a plurality of main baffles 22, at least one end of the main baffles 22 being a connecting portion 23, all connecting portions 23 of the sublattice 21 being located on the same virtual polyhedron, and the connecting portions 23 being used to connect the channel wall of the cooling channel 11 and / or another sublattice 21.

[0050] like Figures 5-10 As shown, the sublattice 21 is a frame with multiple connecting parts 23. The rods constituting the frame serve as flow disturbance parts, and flow channels are formed between the rods. The frame has multiple connecting parts 23, which are located on the same virtual polyhedron. Specifically, the connecting parts 23 can be located at the vertices of the virtual polyhedron, the midpoints of the edges of the virtual polyhedron, or the faces of the virtual polyhedron. The virtual polyhedron is a hexahedron, an octahedron, or a dodecahedron, etc., preferably a hexahedron. The connecting part 23 is used to connect the channel wall of the cooling channel 11 and / or another sub-lattice 21 to fix the lattice body 2 in the cooling channel 11. In other words, in the lattice body 2, the connecting parts 23 on the overlapping faces, edges or vertices of two adjacent sub-lattices 21 are connected to connect the two adjacent sub-lattices 21. The connecting part 23 located on the virtual outer wall of the lattice body 2 is connected to the channel wall of the cooling channel 11 to fix the lattice body 2 in the cooling channel 11. There are some connecting parts 23 that simultaneously connect another connecting part 23 and the channel wall of the cooling channel 11.

[0051] The frame includes a main deflector bar 22, at least one end of which is a connecting part 23, so as to serve both deflection and installation functions.

[0052] It is understood that the sublattice is not limited to a framework; in other embodiments, the sublattice is a bulk material with multiple branch channels.

[0053] In some embodiments, one end of the main spoiler 22 is a connecting part 23, and the other end of the main spoiler 22 is connected to at least one of the other main spoilers 22.

[0054] exist Figure 5 , Figure 6 and Figure 7In the illustrated embodiment, the main spoiler 22 is a straight rod, and multiple main spoilers 22 are arranged in a radiating pattern. One end of the main spoiler 22 is a connecting portion 23. Figure 5 In the illustrated embodiment, one portion of the connecting part 23 is located at the midpoint of the edge of the virtual polyhedron, and another portion of the connecting part 23 is located at the vertex of the virtual polyhedron. Figure 6 and Figure 7 In the embodiment shown, all connecting parts 23 are located at the vertices of the virtual polyhedron, and the other ends of all main spoiler rods 22 are located at the center of the virtual polyhedron and connected together.

[0055] In such Figure 9 In the illustrated embodiment, the main spoiler 22 includes a first main spoiler 221 and a second main spoiler 222. The second main spoilers 222 are arranged in pairs in the vertical direction. In the paired second main spoilers 222, one end of the second main spoiler 222 is a connecting part 23 located at the vertex of the virtual polyhedron, and the other ends of the second main spoilers 222 are connected to each other. Multiple pairs of second main spoilers 222 are provided, and the multiple pairs of second main spoilers 222 are arranged at intervals in the vertical direction.

[0056] In some embodiments, both ends of the main spoiler 22 are connecting portions 23, and the end of each main spoiler 22 is connected to at least one of the other main spoilers 22.

[0057] exist Figure 8 In the illustrated embodiment, the main spoiler 22 is a bent rod, with connecting portions 23 at both ends. Multiple sets of main spoilers 22 are provided, preferably two sets, arranged sequentially in a vertical direction. Each set includes multiple main spoilers 22, preferably four. The four main spoilers 22 in the upper set correspond one-to-one with the four main spoilers 22 in the lower set.

[0058] Four main spoiler bars 22 in the same group are connected at one end and located at the center of the corresponding face of the virtual polyhedron. Specifically, the top ends of the four main spoiler bars 22 in the upper group are connected and located at the center of the top face of the virtual polyhedron, and the bottom ends of the four main spoiler bars 22 in the lower group are connected and located at the center of the bottom face of the virtual polyhedron. The other ends of two corresponding main spoiler bars 22 are connected and located at the center of the corresponding face of the virtual polyhedron. Specifically, the other ends of the four main spoiler bars 22 in the same group extend forward, backward, left, and right respectively. In two groups of main spoiler bars 22, the other ends of two main spoiler bars 22 extending in the same direction and correspondingly located are connected and located at the center of the corresponding directional face of the virtual polyhedron. Therefore, one end of a main spoiler bar 22 connects to multiple main spoiler bars 22, and the other end of a main spoiler bar 22 connects to one main spoiler bar 22. Both ends of the main spoiler bar 22 are connecting parts 23. It can be understood that the number of main spoiler bars is not limited to two groups.

[0059] In some embodiments, the sublattice 21 further includes a plurality of secondary spoilers 24, which are connected between two main spoilers 22, or between the main spoilers 22 and at least one of the other secondary spoilers 24.

[0060] The frame also includes a secondary turbulence rod 24, which serves as a connection and support as well as a turbulence-causing mechanism within the sub-lattice 21. However, the secondary turbulence rod 24 is not connected to the channel wall of the cooling channel 11 or the other sub-lattice 21.

[0061] In such Figure 7 In the embodiment shown, the secondary spoiler 24 extends in the left-right direction and connects between two adjacent main spoiler 22 in the left-right direction.

[0062] In such Figure 9 In the illustrated embodiment, a secondary spoiler 24 located at the bottom is connected between two main spoiler 22 connected at the front end and two main spoiler 22 connected at the rear end. Both ends of the remaining secondary spoiler 24 are connected to the corresponding main spoiler 22. Preferably, one end of the secondary spoiler 24 is connected to one main spoiler 22, and the other end of the secondary spoiler 24 is connected to the two main spoiler 22.

[0063] In such Figure 10 In the embodiment shown, the other ends of the three main spoiler rods 22 are connected, and the connection part 23 of the three main spoiler rods 22 is located on different edges of the virtual polyhedron. One end of the secondary spoiler rod 24 is connected to the other end of the three main spoiler rods 22 at the same time. The other end of the secondary spoiler rod 24 extends to the center of the virtual polyhedron, and the other ends of all the secondary spoiler rods 24 are connected.

[0064] As the number and arrangement complexity of the main and secondary baffles 22 and the secondary baffles 24 vary, the increase in the average Nusselt number of the corresponding cooling channels 11 and the reduction in the wall temperature of the transition section body 1 also vary. The higher the arrangement complexity of the main and secondary baffles 22 and the secondary baffles 24, the stronger the turbulence effect, and the higher the increase in the average Nusselt number of the corresponding cooling channels 11 and the reduction in the wall temperature of the transition section body 1.

[0065] When sublattice 21 is set as one layer Figure 5 The illustrated embodiments to Figure 10 The average Nusselt number of the corresponding cooling channels 11 in the embodiments shown increases by 23%-27%, 38%-42%, 48%-52%, 33%-37%, 68%-72%, and 83%-87%, respectively, which corresponds to a reduction in the wall temperature of the transition section body 1 by 10℃-14℃, 18℃-22℃, 23℃-27℃, 13℃-17℃, 28℃-32℃, and 38℃-42℃, respectively.

[0066] In some embodiments, the wall of the transition section body 1 includes an outer wall 12, an intermediate wall 13 and an inner wall 14. The intermediate wall 13 is provided with a cooling channel 11, and the cooling channel 11 and the intermediate wall 13 are connected between the outer wall 12 and the inner wall 14.

[0067] like Figure 3 and Figure 4 As shown, the wall of the transition section body 1 includes an outer wall 12, a middle wall 13, and an inner wall 14. The outer wall 12, middle wall 13, and inner wall 14 are all irregular annular shells and are sequentially arranged from the outside to the inside. The middle wall 13 has a cooling channel 11 extending vertically, and the cooling channel 11 penetrates the middle wall 13 in both the inward and outward directions, so that the cooling medium inside the cooling channel 11 can contact the outer wall 12 and the inner wall 14, thereby achieving heat exchange and cooling. The middle wall 13 also supports the outer wall 12 and the inner wall 14 to prevent the cooling channel 11 from deforming under pressure. A lattice body 2 fills the cooling channel 11, such as... Figure 4 As shown, the connecting portion 23 at the left end and the connecting portion 23 at the right end of the lattice 2 are both connected to the intermediate wall 13, the connecting portion 23 at the upper end of the lattice 2 is connected to the outer wall 12, and the connecting portion 23 at the lower end of the lattice 2 is connected to the inner wall 14.

[0068] Preferably, the outer wall 12 and the inner wall 14 are abutted and connected to the corresponding connecting part 23, and the middle wall 13 is welded to the corresponding connecting part 23.

[0069] In some embodiments, the outer wall 12 is provided with a cooling medium inlet, the inner wall 14 is provided with a cooling medium outlet, the cooling medium inlet and the cooling medium outlet are arranged at intervals along the direction of gas flow in the inner cavity of the transition section body 1, and the cooling channel 11 is connected between the cooling medium inlet and the cooling medium outlet.

[0070] like Figure 1 As shown, the cooling channel 11 extends in the vertical direction. The outer wall surface at the lower end of the outer wall 12 is provided with a cooling medium inlet, which is connected to the outside of the transition section body 1. The inner wall surface at the upper end of the inner wall 14 is provided with a cooling medium outlet, which is connected to the inner cavity of the transition section body 1. The cooling channel 11 is connected between the cooling medium inlet and the cooling medium outlet. The air outside the transition section body 1 enters the cooling channel 11 through the cooling medium inlet. The air flows upward in the cooling channel 11. During the flow, it passes through the lattice 2 and generates turbulence under the action of the lattice 2. At the same time, heat exchange occurs during the flow. The heated air after heat exchange is discharged through the cooling medium outlet.

[0071] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0072] Furthermore, the terms "first" and "second" are used only for distinction and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0073] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0074] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0075] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A transition section for a laminated cooling combustion chamber, characterized in that, include: Transition segment body (1) and lattice (2); The wall of the transition section body (1) is provided with a cooling channel (11), which extends along the direction of gas flow in the inner cavity of the transition section body (1). The lattice (2) is disposed in the cooling channel (11) to cause turbulence in the cooling medium flowing in the cooling channel (11); The wall surface of the transition section body (1) includes an outer wall (12), a middle wall (13) and an inner wall (14). The middle wall (13) is provided with the cooling channel (11). The cooling channel (11) and the middle wall (13) are connected between the outer wall (12) and the inner wall (14). The outer wall (12) is provided with a cooling medium inlet, and the inner wall (14) is provided with a cooling medium outlet. The cooling medium inlet and the cooling medium outlet are arranged at intervals along the direction of gas flow in the inner cavity of the transition section body (1). The cooling channel (11) is connected between the cooling medium inlet and the cooling medium outlet. The lattice (2) completely fills the cooling channel (11); The lattice (2) includes a plurality of sublattices (21), wherein at least a portion of the sublattices (21) are connected in a row along the extension direction of the cooling channel (11); The lattice (2) has a plurality of sublattices (21) on the cross-section of the cooling channel (11), and each sublattice (21) on the cross-section corresponds to a row of sublattices (21). The cross-sectional shape of the lattice (2) is a rectangle that matches the cross-sectional shape of the cooling channel (11); The sublattice (21) includes a plurality of main flow-dispersing rods (22), at least one end of the main flow-dispersing rod (22) is a connecting part (23), all the connecting parts (23) of the sublattice (21) are located on the same virtual polyhedron, and the connecting parts (23) are used to connect the channel wall of the cooling channel (11) and / or another sublattice (21).

2. The transition section of the laminated cooling combustion chamber according to claim 1, characterized in that, One end of the main spoiler (22) is the connecting part (23), and the other end of the main spoiler (22) is connected to at least one of the other main spoilers (22).

3. The transition section of the laminated cooling combustion chamber according to claim 1, characterized in that, The sublattice (21) also includes a plurality of secondary spoilers (24), which are connected between two of the main spoilers (22) or between the main spoilers (22) and at least one of the other secondary spoilers (24).

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