Steady vane simulator and combustion chamber test device

Abstract

This invention relates to a stator blade simulator and a combustion chamber testing apparatus. The stator blade simulator includes a housing and a support member. The housing has a first cooling channel through which a cooling medium is introduced to exchange heat with the housing and reduce its temperature. The support member is disposed within the first cooling channel and connected to the wall of the first cooling channel. The support member has holes communicating with the first cooling channel to allow the cooling medium to pass through. The ratio of the area to the volume of the wall of the first cooling channel is m, and the ratio of the surface area to the volume of the support member is n, where n > m. The stator blade simulator of this invention enhances the structural strength of the housing through the support member, ensuring the metal life of the stator blade simulator, while simultaneously enhancing the heat dissipation and cooling effect of the cooling medium on the housing.

Description

Technical Field

[0001] This invention relates to the field of combustion chamber testing technology, and in particular to a stator vane simulator and a combustion chamber testing device. Background Technology

[0002] The stator vane simulator provides realistic outlet boundary conditions for combustion chamber component testing. To improve overall efficiency, the combustion chamber outlet temperature continuously increases, requiring more efficient cooling technology to ensure that the maximum wall temperature of the stator vane simulator remains below the long-term allowable temperature of the metal material. In related technologies, to achieve better cooling, cooling channels are densely arranged on the shell of the stator vane simulator, resulting in a large total flow area. However, this large area of ​​cooling channels can negatively impact the lifespan of the stator vane simulator's metal body. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention propose a stator blade simulator that enhances the structural strength of the shell through support members, ensuring the metal lifespan of the stator blade simulator, while simultaneously enhancing the heat dissipation and cooling effect of the cooling medium on the shell.

[0004] This invention also proposes a combustion chamber testing device.

[0005] The still leaf simulator of this invention includes:

[0006] A housing, wherein a first cooling channel is provided on the housing, the first cooling channel being used to introduce a cooling medium so that the cooling medium exchanges heat with the housing to reduce the temperature of the housing; and

[0007] A support member is disposed within the first cooling channel and connected to the wall of the first cooling channel. The support member has holes that communicate with the first cooling channel to allow cooling medium to pass through the support member. The ratio of the area to the volume of the wall of the first cooling channel is m, and the ratio of the surface area to the volume of the support member is n, where n > m.

[0008] In this embodiment of the invention, the stator simulator is equipped with a support member in the first cooling channel. The support member enhances the structural strength of the shell and ensures the metal life of the stator simulator. At the same time, the support member generates turbulence on the cooling medium in the first cooling channel, thereby enhancing the convective heat transfer effect between the cooling medium and the wall of the first cooling channel and the support member, and enhancing the heat dissipation and cooling effect of the cooling medium on the shell.

[0009] In some embodiments, the still leaf simulator further includes:

[0010] A guide vane, wherein the guide vane is disposed within the cavity of the housing, and the guide vane is provided with a second cooling channel, the second cooling channel communicating with the first cooling channel; and

[0011] A flow-disrupting element is disposed within the second cooling channel to cause turbulence in the cooling medium flowing within the second cooling channel.

[0012] In some embodiments, the support completely fills the first cooling channel, and / or the baffle is located and / or adjacent to the outlet of the second cooling channel.

[0013] In some embodiments, each of the support and the deflector is a lattice structure comprising a plurality of sublattices, wherein at least a portion of the sublattices of the support are sequentially connected in a row along the extension direction of the first cooling channel, and at least a portion of the sublattices of the deflector are sequentially connected in a row along the extension direction of the second 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, and all the connecting portions of the sublattice are located on the same virtual polyhedron, wherein the connecting portion of the support is connected to the wall of the first cooling channel and / or another sublattice, and the connecting portion of the baffle is used to connect to the wall of the second cooling channel and / or another sublattice.

[0015] In some embodiments, the virtual polyhedron is a hexahedron.

[0016] 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.

[0017] In some embodiments, both ends of the main spoiler are the connecting portions. There are multiple groups of main spoilers, and each group of main spoilers includes multiple main spoilers. One end of all the main spoilers in the same group is connected. In two adjacent groups of main spoilers, at least a portion of the other end of the main spoilers in one group is connected to at least a portion of the other end of the main spoilers in the other group in a one-to-one correspondence.

[0018] 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.

[0019] One embodiment of the combustion chamber test apparatus of the present invention includes the stationary blade simulator described in any of the above embodiments.

[0020] The combustion chamber test apparatus of this invention enhances the metal life and cooling effect of the stator blade simulator. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the still leaf simulator according to an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A schematic diagram of the AA cross-sectional structure;

[0023] Figure 3 yes Figure 2 A schematic diagram at point C in the diagram;

[0024] Figure 4 yes Figure 1 A diagram at point BB in the diagram;

[0025] Figure 5 This is a schematic diagram of the structure of the first embodiment of the sublattice in this invention;

[0026] Figure 6 This is a schematic diagram of the structure of the second embodiment of the sublattice in this invention;

[0027] Figure 7 This is a schematic diagram of the structure of the third embodiment of the sublattice in this invention;

[0028] Figure 8 This is a schematic diagram of the structure of the fourth embodiment of the sublattice in this invention;

[0029] Figure 9 This is a schematic diagram of the structure of the fifth embodiment of the sublattice in this invention;

[0030] Figure 10 This is a schematic diagram of the structure of the sixth embodiment of the sublattice in this invention;

[0031] Figure 11 This is a schematic diagram of the structure of the sublattice support in the first cooling channel in the second embodiment, which is arranged in a single row.

[0032] Figure 12 This is a schematic diagram of the structure of the sublattice support in the first cooling channel in the second embodiment, which is arranged in three rows.

[0033] Figure 13 This is a schematic diagram of the structure of the sublattice baffle in the second cooling channel in the second embodiment, which is arranged in a single row.

[0034] Figure 14 This is a schematic diagram of the structure of the sublattice baffle in the second cooling channel in the second embodiment, which is arranged in three rows.

[0035] Figure label:

[0036] Jingye Simulator 100;

[0037] Casing 1, Gas passage 11;

[0038] Support component 2;

[0039] Guide vane 3, second cooling channel 31;

[0040] spoiler 4;

[0041] Sub-lattice 51, main spoiler 511, connecting part 5111, first main spoiler 5112, second main spoiler 5113, secondary spoiler 512. Detailed Implementation

[0042] 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.

[0043] like Figures 1 to 14 As shown, the still leaf simulator 100 of this embodiment of the invention includes a housing 1 and a support member 2.

[0044] The housing 1 has a cavity, which includes a gas passage 11. High-temperature gas can enter the gas passage 11 through the inlet and exit through the outlet of the gas passage 11. In operation, the high-temperature gas passes through the cavity of the housing 1 in the static blade simulator 100 of this embodiment of the invention, causing the temperature of the housing 1 to rise.

[0045] The housing 1 is provided with a first cooling channel for introducing a cooling medium to exchange heat with the housing 1 and reduce the temperature of the housing 1. Preferably, the cooling medium is cooling water.

[0046] The support member 2 is disposed in the first cooling channel and is connected to the wall of the first cooling channel. The support member 2 has holes that communicate with the first cooling channel so that the cooling medium can pass through the support member 2. The ratio of the area of ​​the wall of the first cooling channel to its volume is m, and the ratio of the surface area of ​​the support member 2 to its volume is n, where n > m.

[0047] On the one hand, the support member 2 itself has a certain structural strength. Connected to the wall of the first cooling channel, it provides support for the channel, thereby increasing the structural strength of the shell 1 and ensuring its metal lifespan meets requirements, thus guaranteeing the metal lifespan of the stator simulator 100. On the other hand, the connection between the support member 2 and the wall of the first cooling channel makes them an integral unit, allowing the shell 1 to directly transfer heat to the support member 2. In other words, the support member 2 increases the heat dissipation area of ​​the shell 1. Furthermore, the support member 2 has pores (n > m), meaning it has a high surface area to volume ratio and is porous. This allows the cooling medium to pass through the support member 2 during its flow within the first cooling channel, generating turbulence and lengthening the flow path. This increases the residence time of the cooling medium within the channel, enhancing the convective heat transfer between the cooling medium, the wall of the first cooling channel, and the support member 2, thereby improving the cooling effect on the shell 1.

[0048] In this embodiment of the invention, the still blade simulator 100 is provided with a support member 2 in the first cooling channel. The support member 2 enhances the structural strength of the shell 1 and ensures the metal life of the still blade simulator 100. At the same time, the support member 2 generates turbulence on the cooling medium in the first cooling channel, thereby enhancing the convective heat transfer effect between the cooling medium and the wall of the first cooling channel and the support member 2, and enhancing the heat dissipation and cooling effect of the cooling medium on the shell 1.

[0049] In some embodiments, see Figure 2 The support member 2 completely fills the first cooling channel. The support member 2 extends along the extension direction of the first cooling channel. The extension length of the first cooling channel is consistent with and matches the extension length of the support member 2. When the cooling medium is in the first cooling channel, it is always located in the support member 2, thereby further enhancing the structural strength of the shell 1, further ensuring the metal life of the static blade simulator, and further enhancing the heat dissipation and cooling effect of the cooling medium on the shell 1.

[0050] It is understood that the support member 2 is not limited to completely filling the first cooling channel. In other embodiments, the extension length of the support member 2 is less than the length of the first cooling channel, and the support member 2 is located at the inlet and / or outlet of the first cooling channel.

[0051] In some embodiments, the stator simulator 100 of the present invention further includes a guide vane 3 and a flow disruptor 4. The guide vane 3 is disposed within the cavity of the housing 1 and is connected to the housing 1. The guide vane 3 reduces the cross-sectional area of ​​the gas passage 11, thereby increasing the flow velocity of the gas passing through the gas passage 11. The guide vane 3 guides the gas flowing over its outer surface. That is, the high-temperature gas flowing through the guide vane 3 also raises the temperature of the guide vane 3. The guide vane 3 is provided with a second cooling channel 31, which is connected to the first cooling channel so that the cooling medium flows through the second cooling channel 31 to exchange heat with the guide vane 3 and reduce the temperature of the guide vane 3.

[0052] The turbulence-disrupting element 4 is disposed in the second cooling channel 31 to cause turbulence in the cooling medium flowing in the second cooling channel 31.

[0053] The turbulence-disrupting element 4 has multiple turbulence-disrupting sections, and a flow channel is formed between two adjacent turbulence-disrupting sections. When the cooling medium flows in the second cooling channel 31, it passes through the flow channel of the turbulence-disrupting element 4 and generates turbulence when passing through the turbulence-disrupting element 4. This increases the residence time of the cooling medium in the second cooling channel 31, extends the flow path of the cooling medium in the second cooling channel 31, and increases the complexity of the flow path. This further increases the residence time of the cooling medium in the second cooling channel 31, thereby enhancing the convective heat transfer effect between the cooling medium and the wall of the second cooling channel 31, and enhancing the heat dissipation and cooling effect of the cooling medium on the guide vane 3.

[0054] In some embodiments, the baffle 4 is located and / or adjacent to the outlet of the second cooling channel 31. The guide vane 3 has a higher temperature at the outlet of the second cooling channel 31. Providing the baffle 4 at and / or adjacent to the outlet of the second cooling channel 31 can enhance the heat exchange effect of the cooling medium at the outlet of the second cooling channel 31, reduce the temperature of the guide vane 3 at the outlet of the second cooling channel 31, and reasonably reduce the difficulty and cost of installing the baffle 4 in the second cooling channel 31, thereby reducing the manufacturing difficulty and cost of the stator vane simulator.

[0055] See Figure 4 The spoiler 4 is located at the outlet of the second cooling channel 31.

[0056] It is understood that the baffle 4 is not limited to being located at and / or adjacent to the outlet of the second cooling channel 31. In other embodiments, the baffle 4 completely fills the second cooling channel 31 and extends along the extension direction of the second cooling channel 31. The extension length of the second cooling channel 31 is consistent with and matches the extension length of the baffle 4. When the cooling medium is in the second cooling channel 31, it is always located in the baffle 4, which further enhances the heat dissipation and cooling effect of the cooling medium on the guide vane 3.

[0057] Specifically, the baffle 4 is connected to the wall of the second cooling channel 31. The baffle 4 possesses a certain structural strength, and its connection to the wall of the second cooling channel 31 provides support for the second cooling channel 31, thereby increasing the structural strength of the guide vane 3 and ensuring that the metal life of the guide vane 3 meets requirements, thus further guaranteeing the metal life of the stator simulator. Furthermore, the connection between the baffle 4 and the wall of the second cooling channel 31 makes the baffle 4 and the guide vane 3 integrated, allowing the guide vane to directly transfer heat to the baffle 4. In other words, the baffle 4 increases the heat dissipation area of ​​the guide vane 3.

[0058] In some embodiments, each of the support member 2 and the baffle member 4 is a lattice structure, the lattice structure including a plurality of sub-lattices 51, wherein at least a portion of the sub-lattices 51 of the support member 2 are sequentially connected in a row along the extension direction of the first cooling channel, and at least a portion of the sub-lattices 51 of the baffle member 4 are sequentially connected in a row along the extension direction of the second cooling channel 31.

[0059] In other words, the support member 2 includes several rows of sub-lattices 51, and each row of sub-lattices 51 includes multiple sub-lattices 51 connected sequentially along the extension direction of the first cooling channel. Figure 11 In the embodiment shown, the support 2 is a row of sub-lattices 51. Figure 12 In the illustrated embodiment, the support 2 consists of three rows of sub-lattices 51. The flow-deflecting element 4 includes several rows of sub-lattices 51, each row comprising multiple sub-lattices 51 sequentially connected along the extension direction of the second cooling channel 31. Figure 13 In the embodiment shown, the turbulence element 4 is a row of sub-lattices 51. Figure 14 In the embodiment shown, the turbulence element 4 is a three-row sub-lattice 51.

[0060] It is understood that the number of rows of sub-lattices 51 in the support member 2 is not limited to one or three rows. In other embodiments, the support member 2 has two, four, or five rows of sub-lattices 51. Similarly, the number of rows of sub-lattices 51 in the flow-disrupting member 4 is not limited to one or three rows. In other embodiments, the flow-disrupting member 4 has two, four, or five rows of sub-lattices 51.

[0061] Each sub-lattice 51 has multiple flow-disrupting sections and flow channels, thus each sub-lattice 51 turbulents the passing cooling medium. The flow channels of the sub-lattice 51 are also the holes of the support member 2. When the cooling medium flows in the first cooling channel, it passes through multiple sub-lattices 51 of the support member 2 in sequence, generating turbulence at each sub-lattice 51, thereby effectively increasing the residence time of the cooling medium in the first cooling channel and effectively increasing the complexity of the cooling medium flow path. When the cooling medium flows in the second cooling channel 31, it passes through multiple sub-lattices 51 of the flow-disrupting member 4 in sequence, generating turbulence at each sub-lattice 51, thereby effectively increasing the residence time of the cooling medium in the second cooling channel 31 and effectively increasing the complexity of the cooling medium flow path.

[0062] It should be noted that although each of the support member 2 and the baffle member 4 is a lattice structure, the structure of the support member 2 and the structure of the baffle member 4 can be the same or different.

[0063] In some embodiments, the sub-lattice 51 includes a plurality of main baffles 511, at least one end of the main baffles 511 being a connecting portion 5111, and all connecting portions 5111 of the sub-lattice 51 being located on the same virtual polyhedron. The connecting portion 5111 of the support member 2 is connected to the wall of the first cooling channel and / or another sub-lattice 51, and the connecting portion 5111 of the baffle member 4 is used to connect to the wall of the second cooling channel 31 and / or another sub-lattice 51.

[0064] like Figures 5-10 As shown, the sublattice 51 is a frame with multiple connecting parts 5111. The rods constituting the frame serve as flow disturbance parts, and flow channels are formed between the rods. The frame has multiple connecting parts 5111, and the connecting parts 5111 are located on the same virtual polyhedron. Specifically, the connecting parts 5111 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.

[0065] The connecting portion 5111 of the support member 2 is used to connect the channel wall of the first cooling channel and / or another sub-lattice 51 to fix the support member 2 in the first cooling channel. The connecting portion 5111 of the baffle member 4 is used to connect the channel wall of the second cooling channel 31 and / or another sub-lattice 51 to fix the baffle member 4 in the second cooling channel 31.

[0066] In other words, taking the turbulence-disrupting element 4 as an example, in the turbulence-disrupting element 4, the connecting parts 5111 on the overlapping surfaces, edges or vertices of two adjacent sub-lattices 51 are connected to connect the two adjacent sub-lattices 51. The connecting parts 5111 on the virtual outer wall of the turbulence-disrupting element 4 are connected to the wall of the second cooling channel 31 to fix the turbulence-disrupting element 4 in the second cooling channel 31. There are some connecting parts 5111 that are simultaneously connected to another connecting part 5111 and the wall of the second cooling channel 31.

[0067] The frame includes a main spoiler 511, at least one end of which is a connecting part 5111, so as to serve both spoiler and installation functions.

[0068] It is understood that the sublattice 51 is not limited to a frame; in other embodiments, the sublattice 51 is a block with multiple branch channels.

[0069] In some embodiments, one end of the main spoiler 511 is a connecting part 5111, and the other end of the main spoiler 511 is connected to at least one of the other main spoilers 511.

[0070] exist Figure 5 , Figure 6 and Figure 7 In the illustrated embodiment, the main spoiler 511 is a straight rod, and multiple main spoilers 511 are arranged in a radiating pattern. One end of each main spoiler 511 is a connecting portion 5111. Figure 5 In the illustrated embodiment, one portion of the connecting part 5111 is located at the midpoint of the edge of the virtual polyhedron, and another portion of the connecting part 5111 is located at the vertex of the virtual polyhedron. Figure 6 and Figure 7 In the embodiment shown, all connecting parts 5111 are located at the vertices of the virtual polyhedron, and the other ends of all main spoiler rods 511 are located at the center of the virtual polyhedron and connected together.

[0071] In such Figure 9 In the illustrated embodiment, the main spoiler 511 includes a first main spoiler 5112 and a second main spoiler 5113. The second main spoilers 5113 are arranged in pairs in the vertical direction. In the paired second main spoilers 5113, one end is a connecting portion 5111 located at the vertex of the virtual polyhedron, and the other ends are connected to each other and to the first main spoiler 5112. Multiple pairs of second main spoilers 5113 are provided, and these pairs are arranged at intervals in the vertical direction.

[0072] In some embodiments, both ends of the main spoiler 511 are connecting portions 5111, and the end of each main spoiler 511 is connected to at least one of the other main spoilers 511.

[0073] exist Figure 8 In the illustrated embodiment, the main spoiler 511 is a bent rod, with both ends of the main spoiler 511 being connecting portions 5111. Multiple groups of main spoilers 511 are provided, preferably two groups, arranged sequentially in a vertical direction. Each group of main spoilers 511 includes multiple main spoilers 511, preferably four. The four main spoilers 511 in the upper group correspond one-to-one with the four main spoilers 511 in the lower group.

[0074] Four main spoiler rods 511 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 rods 511 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 rods 511 in the lower group are connected and located at the center of the bottom face of the virtual polyhedron. Two main spoiler rods 511 arranged in a one-to-one correspondence are connected at the other end and located at the center of the corresponding face of the virtual polyhedron. Specifically, the other ends of the four main spoiler rods 511 in the same group extend forward, backward, left, and right respectively. In two groups of main spoiler rods 511, two main spoiler rods 511 extending in the same direction and correspondingly arranged are connected at the other end and located at the center of the corresponding directional face of the virtual polyhedron. Therefore, one end of a main spoiler rod 511 connects to multiple main spoiler rods 511, and the other end of a main spoiler rod 511 connects to one main spoiler rod 511. Both ends of the main spoiler rod 511 are connecting parts 5111. It can be understood that the number of main spoiler rods 511 is not limited to two groups.

[0075] In some embodiments, the sublattice 51 further includes a plurality of secondary spoilers 512, which are connected between two main spoilers 511, or between the main spoilers 511 and at least one of the other secondary spoilers 512.

[0076] The frame also includes a secondary baffle rod 512. The secondary baffle rod 512 plays a connecting and supporting role and a baffle effect within the sub-lattice 51. However, the secondary baffle rod 512 is not connected to the wall of the cooling channel or the other sub-lattice 51. That is, the secondary baffle rod 512 of the support member 2 is not connected to the wall of the first cooling channel or the other sub-lattice 51, and the secondary baffle rod 512 of the baffle member 4 is not connected to the wall of the second cooling channel or the other sub-lattice 51.

[0077] In such Figure 7 In the embodiment shown, the secondary spoiler 512 extends in the left-right direction and connects between two adjacent main spoilers 511 in the left-right direction.

[0078] In such Figure 9In the illustrated embodiment, a secondary spoiler 512 located at the bottom is connected between two main spoiler 511 connected at the front end and two main spoiler 511 connected at the rear end. Both ends of the remaining secondary spoiler 512 are connected to the corresponding main spoiler 511. Preferably, one end of the secondary spoiler 512 is connected to one main spoiler 511, and the other end of the secondary spoiler 512 is connected to the two main spoiler 511.

[0079] In such Figure 10 In the embodiment shown, the other ends of the three main spoiler rods 511 are connected, and the connecting parts 5111 of the three main spoiler rods 511 are located on different edges of the virtual polyhedron. One end of the secondary spoiler rod 512 is connected to the other end of the three main spoiler rods 511 at the same time. The other end of the secondary spoiler rod 512 extends to the center of the virtual polyhedron, and the other ends of all the secondary spoiler rods 512 are connected.

[0080] As the number and arrangement complexity of the main and secondary baffles 511 and 512 vary, the increase in the average Nusselt number of the corresponding cooling channels and the temperature that can be reduced also differ, as does the supporting strength of the cooling channels. The higher the arrangement complexity of the main and secondary baffles 511 and 512, the stronger the turbulence effect, the higher the increase in the average Nusselt number of the first cooling channel and the higher the wall temperature that can be reduced in the shell 1, resulting in a greater enhancement of the structural strength of the shell 1. Similarly, the higher the increase in the average Nusselt number of the second cooling channel 31 and the higher the wall temperature that can be reduced in the guide vane 3, resulting in a greater enhancement of the structural strength of the guide vane 3.

[0081] Specifically, the support 2 and the shell 1 are formed by additive manufacturing process, and the turbulence component 4 and the guide vane are formed by additive manufacturing process.

[0082] The combustion chamber test apparatus of an embodiment of the present invention is described below.

[0083] The combustion chamber test apparatus of this invention includes the stator blade simulator 100 of any of the above embodiments.

[0084] Therefore, the combustion chamber test apparatus of this invention enhances the metal life and cooling effect of the stator blade simulator.

[0085] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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.

[0086] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. 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.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A still leaf simulator, characterized in that, include: The housing (1) is provided with a first cooling channel, which is used to introduce a cooling medium so that the cooling medium exchanges heat with the housing (1) to reduce the temperature of the housing (1); A support member (2) is provided in the first cooling channel. The support member (2) is connected to the wall of the first cooling channel. The support member (2) has a hole that communicates with the first cooling channel so that the cooling medium can pass through the support member (2). The ratio of the area of ​​the wall of the first cooling channel to its volume is m, and the ratio of the surface area of ​​the support member (2) to its volume is n, where n > m. A guide vane (3) is disposed within the cavity of the housing (1), and a second cooling channel (31) is provided on the guide vane (3), the second cooling channel (31) communicating with the first cooling channel; and A flow-deflecting element (4) is provided in the second cooling channel (31) to cause turbulence in the cooling medium flowing in the second cooling channel (31); Each of the support member (2) and the baffle member (4) is a lattice structure, the lattice structure including a plurality of sub-lattices (51), wherein at least a portion of the sub-lattices (51) of the support member (2) are sequentially connected in a row along the extension direction of the first cooling channel, and at least a portion of the sub-lattices (51) of the baffle member (4) are sequentially connected in a row along the extension direction of the second cooling channel (31); The sub-lattice (51) includes a plurality of main baffles (511), at least one end of the main baffles (511) being a connecting part (5111). All the connecting parts (5111) of the sub-lattice (51) are located on the same virtual polyhedron. The connecting part (5111) of the support member (2) is connected to the wall of the first cooling channel and / or another sub-lattice (51). The connecting part (5111) of the baffle member (4) is used to connect to the wall of the second cooling channel (31) and / or another sub-lattice (51).

2. The still leaf simulator according to claim 1, characterized in that, The support (2) completely fills the first cooling channel, and / or the baffle (4) is located at and / or adjacent to the outlet of the second cooling channel (31).

3. The still leaf simulator according to claim 1, characterized in that, The virtual polyhedron is a hexahedron.

4. The still leaf simulator according to claim 1, characterized in that, One end of the main spoiler (511) is the connecting part (5111), and the other end of the main spoiler (511) is connected to at least one of the other main spoilers (511).

5. The still leaf simulator according to claim 4, characterized in that, Both ends of the main spoiler (511) are the connecting parts (5111). There are multiple groups of main spoilers (511), and each group of main spoilers (511) includes multiple main spoilers (511). One end of all the main spoilers (511) in the same group is connected. In two adjacent groups of main spoilers (511), at least a portion of the main spoilers (511) in one group is connected to at least a portion of the main spoilers (511) in the other group.

6. The still leaf simulator according to claim 1, characterized in that, The sublattice (51) also includes a plurality of secondary spoilers (512), which are connected between two of the main spoilers (511) or between the main spoilers (511) and at least one of the other secondary spoilers (512).

7. A combustion chamber testing apparatus, characterized in that, Includes the still leaf simulator as described in any one of claims 1 to 6.

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