Integrated detachable afterburner test piece

Abstract

The invention provides an integrated detachable afterburner test piece. The integrated detachable afterburner test piece comprises an inlet section, a measuring section and an exhaust section which are sequentially communicated in the airflow direction. The inlet section is used for receiving incoming flow from an air supply system. A combustion assembly is installed in the measuring section and comprises a supporting plate concave cavity fixing plate, a supporting plate, a concave cavity and a supporting plate nozzle, a clamping groove matched with the supporting plate is formed in the supporting plate concave cavity fixing plate, the supporting plate is embedded into the clamping groove, an installation groove is formed in the supporting plate, and the supporting plate nozzle penetrates through a nozzle reserved hole in the supporting plate concave cavity fixing plate and is clamped into the installation groove in the supporting plate. And the spray nozzle is used for spraying oil mist into the measuring section. The concave cavity is formed in the supporting plate concave cavity fixing plate behind the supporting plate; and a plurality of concave cavity nozzles and igniters are arranged on the concave cavity. And the exhaust section is used for leading out high-temperature airflow after combustion. According to the invention, a modularized and replaceable nozzle and cavity structure is adopted, so that a single test piece can adapt to efficient comparison of various research schemes, the research and development flexibility is remarkably enhanced, and the design iteration is accelerated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aeroengines, in particular to an integrated detachable afterburner test piece. BACKGROUND

[0002] In the aero-propulsion system, as the key component to improve the thrust of the engine, the performance of the afterburner is directly related to the maneuverability, supersonic cruise capability and combat effectiveness of the aircraft. In order to support the research and development of advanced afterburners, ground testing is an indispensable technical means, especially when studying core issues such as fuel atomization characteristics, ignition reliability, flame stability, and multi-flame co-flame mechanism, a highly simulated test platform is particularly important. However, the traditional afterburner test piece widely used at present has significant limitations in structural design and functional integration, making it difficult to meet the increasingly complex research and engineering verification needs.

[0003] The strut flame stabilizer, the concave cavity structure and various fuel nozzles in the traditional test piece are usually fixed inside the test section by welding, riveting or integral casting, forming a rigid integrated structure. Although this design has certain advantages in structural strength, it completely sacrifices flexibility. Once the number of struts needs to be adjusted, the geometric parameters of the concave cavity such as the front / rear inclination angle and depth, or different types of nozzles such as pressure swirl type and air atomization type need to be replaced, the entire test section must be disassembled and even scrapped, which cannot achieve rapid reconstruction. This makes it extremely difficult to systematically match and optimize the research of advanced flame stabilization configurations such as "multi-strut-concave cavity" and diversified nozzle schemes, greatly limiting the exploration and verification speed of new afterburner concepts.

[0004] Therefore, there is an urgent need for a new type of afterburner test piece that is highly modular and can be flexibly configured to provide strong basic support for the research and development of the next generation of high-performance aeroengines. SUMMARY

[0005] The present application provides an integrated detachable afterburner test piece, which is composed of an inlet section, a measurement section and an exhaust section. By using modular and replaceable nozzles and concave cavity structures, a single test piece can adapt to efficient comparison of various research schemes, significantly enhancing research flexibility and accelerating design iteration.

[0006] The present application achieves the above technical purpose through the following technical means.

[0007] An integrated detachable afterburner test piece, comprising an inlet section, a measurement section and an exhaust section connected in sequence along the airflow direction; The inlet section is used for receiving the flow from the gas supply system, the inlet end of the inlet section is communicated with the upstream gas supply system; the shell of the inlet section adopts double-wall structure, the inner wall and the outer wall form a closed first cooling circulating water flow channel; the outer wall of the inlet section is provided with a first cooling circulating water inlet and a first cooling circulating water outlet communicated with the first cooling circulating water flow channel; the shell of the inlet section is provided with a PIV particle injection interface for injecting tracer particles. The inlet end of the measuring section is communicated with the outlet end of the inlet section; the shell of the measuring section adopts double-wall structure, the inner wall and the outer wall form a closed second cooling circulating water flow channel; the outer wall of the measuring section is provided with a second cooling circulating water inlet and a second cooling circulating water outlet communicated with the second cooling circulating water flow channel; the shell of the measuring section at the inlet end is provided with a pitot tube / total pressure probe interface for detecting the pressure of the flow, and the shell of the measuring section at the outlet end is provided with a total temperature and total pressure probe interface for detecting the pressure and temperature of the ignited flow; the measuring section is internally provided with a combustion assembly, including a support plate cavity fixing plate, a support plate, a cavity and a support plate nozzle, the support plate cavity fixing plate is installed on the inner wall of the measuring section and located between the pitot tube / total pressure probe interface and the total temperature and total pressure probe interface, the support plate cavity fixing plate is provided with a clamping groove matched with the support plate; the support plate is embedded in the clamping groove, and the support plate is provided with a mounting groove matched with the support plate nozzle; the support plate nozzle passes through the nozzle reserved hole on the support plate cavity fixing plate and is clamped into the mounting groove on the support plate, for injecting oil mist into the measuring section; the cavity is installed on the support plate cavity fixing plate behind the support plate, and is provided with a plurality of cavity nozzles and an igniter. The inlet end of the exhaust section is communicated with the outlet end of the measuring section, the shell of the exhaust section adopts double-wall structure, the inner wall and the outer wall form a closed third cooling circulating water flow channel; the outer wall of the exhaust section is provided with a third cooling circulating water inlet and a third cooling circulating water outlet communicated with the third cooling circulating water flow channel.

[0008] Further, the exhaust section is sequentially connected by flanges from a rectangular tee joint, a first square-to-round joint, a second square-to-round joint, an upper U-shaped exhaust pipe, a lower U-shaped exhaust pipe and a circular tee joint at the end, the inlet end of the rectangular tee joint is connected with the outlet end of the measuring section by a flange, the two outlet ends of the rectangular tee joint are respectively connected with one end of the first square-to-round joint and the second square-to-round joint by flanges, the other end of the first square-to-round joint and the second square-to-round joint is respectively connected with one end of the upper U-shaped exhaust pipe and the lower U-shaped exhaust pipe by flanges, the other end of the upper U-shaped exhaust pipe and the lower U-shaped exhaust pipe is respectively connected with the two inlet ends of the circular tee joint by flanges, and the outlet end of the circular tee joint is used for leading out high-temperature combustion gas.

[0009] Further, the upper U-shaped exhaust pipe and the lower U-shaped exhaust pipe are internally provided with a plurality of cooling spray rods, and the bottom of the lower U-shaped exhaust pipe is further provided with a water collecting tank for collecting condensed water or non-evaporated cooling liquid, and the bottom of the water collecting tank is provided with a water drainage interface.

[0010] Further, a temperature probe interface for detecting the temperature of the incoming flow is arranged on the measuring section shell between the pitot tube / total pressure probe interface and the support plate cavity fixing plate; the number of the total temperature and total pressure probe interfaces is not less than 2, and the total temperature and total pressure probe interfaces are symmetrically distributed on the measuring section shell; the inlet end of the inlet section, the inlet end of the measuring section, the outlet end of the inlet section, the inlet end of the exhaust section and the outlet end of the measuring section are all connected by flanges.

[0011] Further, the top and the left and right sides of the measuring section shell are respectively provided with an upper view window assembly, a left / right view window assembly, and the rear shell of the rectangular three-way joint is provided with a rear view window assembly; the upper view window assembly, the left / right view window assembly are connected with the measuring section shell through movable flanges, and the rear view window assembly is connected with the rear shell of the rectangular three-way joint through movable flanges.

[0012] Further, the upper view window assembly, the left view window assembly, the right view window assembly and the rear view window assembly have the same structure and all include a glass plate, an inner glass sleeve, an outer glass sleeve, a glass sleeve pressing plate and a high temperature and high pressure sealing gasket; the inner glass sleeve and the outer glass sleeve are respectively sleeved on the inner side and the outer side of the glass plate and are positioned through the matched clamping groove structures; the glass sleeve pressing plate axially presses and fixes the glass plate, the inner glass sleeve and the outer glass sleeve on the shell of the measuring section or the exhaust section through bolts; the high temperature and high pressure sealing gaskets are arranged between the glass plate and the inner glass sleeve and between the glass plate and the outer glass sleeve.

[0013] Further, the ignition device plug, the cavity nozzle plug and the support plate nozzle plug are further included for sealing the ignition device, the cavity nozzle and the support plate nozzle respectively.

[0014] Further, the support plate is formed by splicing the body and the support plate tail edge through mortise and tenon joint; the support plate is fixedly connected with the support plate cavity fixing plate through screws after being embedded in the clamping groove.

[0015] Further, the distance between the support plate tail edges of adjacent support plates is 40-140 mm.

[0016] Further, the cavity is a boss type structure with a front inclination angle, the cavity nozzle and the ignition device are arranged on the front inclined surface of the cavity and the jet directions are towards the incoming flow direction.

[0017] The beneficial effects of the present application are: 1. The invention organically integrates the strut, replaceable nozzle, cavity structure, multi-view observation window, complete pneumatic thermal measurement interface, and efficient spray cooling system into a single test piece. This "one-stop" design completely changes the traditional test "one thing one device" low efficiency mode, enabling the completion of the whole process of atomization, ignition to combustion stability on one platform, multi-dimensional comprehensive research, greatly improving the utilization efficiency and research depth of the test platform.

[0018] 2. The invention realizes the "Lego-style" rapid recombination of test configurations by integrating the nozzle, strut, and cavity on a "nozzle, strut, and cavity component" module that can be removed as a whole, and combining the series of mounting hole designs on the strut cavity fixing plate. Researchers can switch from a single strut to a multi-strut-cavity composite configuration, from a direct injection nozzle to a swirl nozzle, and other schemes in a short time without the need to rework the entire test piece. This not only saves a lot of time and money, but more importantly, greatly accelerates the "design-test-optimization" research and development iteration cycle.

[0019] 3. The invention is equipped with a variety of standardized measurement interface network with reasonable layout, supporting synchronous and accurate measurement of total pressure, static pressure, total temperature, static temperature and other parameters at key positions in the flow field under the same test conditions. Combined with the PIV particle injection interface, non-contact full-field measurement of the velocity field can also be achieved. This synchronous acquisition capability of multiple physical field parameters provides a solid and reliable data foundation for building high-fidelity numerical simulation models and deeply revealing the complex coupling mechanism of aerodynamics-combustion-heat transfer.

[0020] 4. The invention sets up observation windows in the upper, left, right, and rear directions, forming a nearly panoramic stereo vision system. This multi-view collaborative observation capability enables researchers to clearly capture the vortex structure of the cavity recirculation zone, the dynamic evolution of the strut wake, the formation and propagation of the ignition flame kernel, and the whole process of flame coupling between multiple flames. This has irreplaceable value for quantitatively analyzing the flame stability boundary, optimizing the layout of the igniter, and understanding the mechanism of flame coupling failure. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Structure diagram of the integrated detachable afterburner test piece.

[0022] Figure 2 Structure diagram of the integrated detachable afterburner test piece.

[0023] Figure 3 (a) is a top view of the strut / cavity component.

[0024] Figure 3(b) is a bottom view of the strut / cavity component.

[0025] Figure 4 (a) is a schematic view of the cavity nozzle.

[0026] Figure 4 (b) is a schematic view of the strut nozzle.

[0027] Figure 4 (c) is a schematic view of the strut.

[0028] Figure 4 (d) is a schematic view of the cavity.

[0029] Figure 5 is a schematic view of the overhead window assembly.

[0030] Reference signs are as follows: 1 - inlet section; 2 - measurement section; 3 - combustion assembly; 4-1 - first square-to-round joint; 4-2 - second square-to-round joint; 5 - rectangular tee joint; 6 - upper U-shaped exhaust pipe; 7 - circular tee joint; 8 - lower U-shaped exhaust pipe; 9-1 - first cooling circulating water outlet; 9-2 - second cooling circulating water outlet; 9-3 - third cooling circulating water outlet; 10 - PIV particle injection interface; 11 - Pitot tube / total pressure probe interface; 12 - temperature probe interface; 13 - overhead window assembly; 14 - total temperature / total pressure probe interface; 15-1 - first cooling circulating water inlet; 15-2 - second cooling circulating water inlet; 15-3 - third cooling circulating water inlet; 16 - cooling spray rod; 17 - water collecting tank; 18 - rear window assembly; 19 - left / right window assembly; 20 - drainage interface; 21 - strut cavity fixing plate; 22 - strut; 23 - strut nozzle; 24 - strut trailing edge; 25 - cavity; 26 - igniter plug; 27 - cavity nozzle; 28 - cavity nozzle plug; 29 - strut nozzle plug; 30 - screw; 31 - igniter; 32-1 - first cooling circulating water flow channel; 32-2 - second cooling circulating water flow channel; 32-3 - third cooling circulating water flow channel; 33 - high-temperature high-pressure sealing gasket; 34 - clamping groove; 35 - strut fixing hole; 36 - mounting groove; 37 - cavity fixing hole; 38 - glass sleeve pressing plate; 39 - glass plate; 40 - inner glass sleeve; 42 - clamping groove structure; 43 - outer glass sleeve. DETAILED DESCRIPTION

[0031] The application will be further described below in conjunction with the drawings and specific embodiments, but the scope of protection of the application is not limited thereto.

[0032] The integrated detachable afterburner test piece described in the embodiment comprises, in sequence along the airflow direction, an inlet section 1, a measurement section 2 and an exhaust section 3, Figure 1 , 2Fig. 1 is a structural schematic diagram of an integrated detachable reheat combustor test piece according to the present embodiment, and Fig. 2 is a sectional view of the integrated detachable reheat combustor test piece according to the present embodiment.

[0033] The inlet section 1 is used for receiving the incoming flow from the air supply system, and the inlet end of the inlet section 1 is connected to the upstream air supply system. The shell of the inlet section 1 adopts a double-wall structure, and a closed first cooling circulating water flow channel 32-1 is formed between the inner wall and the outer wall. The outer wall of the inlet section 1 is provided with a first cooling circulating water inlet 15-1 and a first cooling circulating water outlet 9-1 connected to the first cooling circulating water flow channel 32-1, for passing in cooling medium to protect the shell from high-temperature thermal load damage. The shell of the inlet section 1 is provided with a PIV particle injection interface 10 for passing in tracer particles.

[0034] The inlet end of the measurement section 2 is connected to the outlet end of the inlet section 1. The shell of the measurement section 2 adopts a double-wall structure, and a closed second cooling circulating water flow channel 32-2 is formed between the inner wall and the outer wall. The outer wall of the measurement section 2 is provided with a second cooling circulating water inlet 15-2 and a second cooling circulating water outlet 9-2 connected to the second cooling circulating water flow channel 32-2. The shell of the measurement section 2 at the inlet end is provided with a pitot tube / total pressure probe interface 11 for detecting the pressure of the incoming flow, and the shell of the measurement section 2 at the outlet end is provided with a total temperature / total pressure probe interface 14 for detecting the pressure and temperature of the ignited flow, the number of the total temperature / total pressure probe interface 14 is not less than 2, and the total temperature / total pressure probe interfaces 14 are symmetrically distributed above and below on the shell of the measurement section 2. The measurement section 2 is internally provided with a combustion assembly 3, including a strut cavity fixing plate 21, a strut plate 22, a cavity 25 and a strut plate nozzle 23, Figure 3(a), (b) are top view and bottom view of strut / cavity components, respectively. The strut cavity fixing plate 21 is installed on the inner wall of the measurement section 2 and is located between the pitot tube / total pressure probe interface 11 and the total temperature / total pressure probe interface 14. A temperature probe interface 12 is also provided on the shell between the pitot tube / total pressure probe interface 11 and the strut cavity fixing plate 21 for obtaining the incoming flow temperature. The distance between adjacent struts 22 is 40-140 mm. The strut cavity fixing plate 21 is provided with a clamping groove 34 matching the strut 22. The strut 22 is spliced by tenon and mortise from the body and the strut trailing edge 24, and the distance between the strut trailing edges 24 of adjacent struts 22 is 40-140 mm. After the strut 22 is embedded in the clamping groove 34, it is fixedly connected with the strut cavity fixing plate 21 by screws 30. The strut 22 is provided with a mounting groove 36 matching the strut nozzle 23. The strut nozzle 23 passes through the nozzle reserved hole on the strut cavity fixing plate 21 and is clamped into the mounting groove 36 on the strut 22 for spraying oil mist into the measurement section 2. The cavity 25 is installed on the strut cavity fixing plate 21 behind the strut 22 and is provided with a plurality of cavity nozzles 27 and igniters 31. The cavity 25 is a boss type structure with a front inclination angle, and the cavity nozzles 27 and igniters 31 are arranged on the front inclined surface of the cavity 25 and the spraying direction is towards the incoming flow direction. Figure 4 (a), (b), (c), (d) are structural schematic diagrams of the cavity nozzle, the strut nozzle, the strut, and the cavity, respectively.

[0035] The top and left / right sides of the shell of the measurement section 2 are respectively provided with an upper window assembly 13, a left / right window assembly 19, and the rear shell of the rectangular three-way joint 5 is provided with a rear window assembly 18. The upper window assembly 13, the left / right window assembly 19 are connected with the shell of the measurement section 2 through movable flanges, and the rear window assembly 18 is connected with the rear shell of the rectangular three-way joint 5 through a movable flange. The upper window assembly 13, the left / right window assembly 19 and the rear window assembly 18 have the same structure and each include a glass plate 39, an inner glass sleeve 40, an outer glass sleeve 43, a glass sleeve pressing plate 38 and a high temperature and high pressure sealing gasket 33. The inner glass sleeve 40 and the outer glass sleeve 43 are respectively sleeved on the inner side and the outer side of the glass plate 39 and are positioned through the matching clamping groove structure 42. The glass sleeve pressing plate 38 axially presses and fixes the glass plate 39, the inner glass sleeve 40 and the outer glass sleeve 43 on the shell of the measurement section 2 or the exhaust section through bolts. The high temperature and high pressure sealing gasket 33 is arranged between the glass plate 39 and the inner glass sleeve 40 and between the glass plate 39 and the outer glass sleeve 43. Figure 5 It is a structural schematic diagram of the upper window assembly.

[0036] The inlet end of the exhaust section is connected with the outlet end of the measuring section 2, and the inlet end of the inlet section 1, the inlet end of the measuring section 2, the outlet end of the inlet section 1, and the inlet end of the exhaust section are all connected by flanges. The shell of the exhaust section has a double-wall structure, and a closed third cooling circulating water flow channel 32-3 is formed between the inner wall and the outer wall. The outer wall of the exhaust section is provided with a third cooling circulating water inlet 15-3 and a third cooling circulating water outlet 9-3 which are connected with the third cooling circulating water flow channel 32-3. The exhaust section is connected by flanges in sequence from the rectangular tee joint 5, the first square-to-round joint 4-1, the second square-to-round joint 4-2, the upper U-shaped exhaust pipe 6, the lower U-shaped exhaust pipe 8, and the circular tee joint at the end. The inlet end of the rectangular tee joint 5 is connected with the outlet end of the measuring section 2 by a flange, and the two outlet ends of the rectangular tee joint 5 are respectively connected with one end of the first square-to-round joint 4-1 and the second square-to-round joint 4-2 by flanges. The other end of the first square-to-round joint 4-1 and the second square-to-round joint 4-2 is respectively connected with one end of the upper U-shaped exhaust pipe 6 and the lower U-shaped exhaust pipe 8 by flanges. The other end of the upper U-shaped exhaust pipe 6 and the lower U-shaped exhaust pipe 8 is respectively connected with the two inlet ends of the circular tee joint by flanges, and the outlet end of the circular tee joint is used to lead out high-temperature combustion gas. The upper U-shaped exhaust pipe 6 and the lower U-shaped exhaust pipe 8 are provided with a plurality of cooling spray rods 16, and the bottom of the lower U-shaped exhaust pipe 8 is provided with a water collecting tank 17 for collecting condensed water or un-evaporated cooling liquid. The bottom of the water collecting tank 17 is provided with a water drainage interface 20.

[0037] For unused mounting hole positions, the embodiment is respectively provided with an igniter 31 plug 26, a recessed cavity 25 nozzle plug 28, and a support plate nozzle plug 29, which are respectively used for sealing the igniter 31, the recessed cavity nozzle 27, and the support plate nozzle 23.

[0038] The embodiment is a preferred embodiment of the present application, but the present application is not limited to the above-mentioned embodiments. Any obvious improvement, replacement or modification made by those skilled in the art without departing from the essential content of the present application shall fall within the protection scope of the present application.

Claims

1. An integrated removable afterburner test article, comprising: The inlet section (1), the measuring section (2) and the exhaust section are sequentially communicated along the airflow direction. The inlet section (1) is used for receiving the airflow from the air supply system, and the inlet end of the inlet section (1) is communicated with the upstream air supply system; the shell of the inlet section (1) adopts a double-wall structure, and a closed first cooling circulating water flow channel (32-1) is formed between the inner wall and the outer wall; the outer wall of the inlet section (1) is provided with a first cooling circulating water inlet (15-1) and a first cooling circulating water outlet (9-1) which are communicated with the first cooling circulating water flow channel (32-1); and a PIV particle injection interface (10) for injecting tracer particles is formed on the shell of the inlet section (1). The inlet end of the measuring section (2) is communicated with the outlet end of the inlet section (1); the shell of the measuring section (2) adopts a double-wall structure, and a closed second cooling circulating water flow channel (32-2) is formed between the inner wall and the outer wall; the outer wall of the measuring section (2) is provided with a second cooling circulating water inlet (15-2) and a second cooling circulating water outlet (9-2) which are communicated with the second cooling circulating water flow channel (32-2); a pitot tube / total pressure probe interface (11) for detecting the pressure of the airflow is formed on the shell of the measuring section (2) at the inlet end, and a total temperature and total pressure probe interface (14) for detecting the pressure and temperature of the airflow after ignition is formed on the shell of the measuring section (2) at the outlet end; a combustion assembly (3) is installed in the measuring section (2), which comprises a support plate recessed cavity fixing plate (21), a support plate (22), a recessed cavity (25) and a support plate nozzle (23); the support plate recessed cavity fixing plate (21) is installed on the inner wall of the measuring section (2) and located between the pitot tube / total pressure probe interface (11) and the total temperature and total pressure probe interface (14); the support plate recessed cavity fixing plate (21) is provided with a clamping groove (34) matched with the support plate (22); the support plate (22) is embedded in the clamping groove (34), and the support plate (22) is provided with an installation groove (36) matched with the support plate nozzle (23); the support plate nozzle (23) penetrates through the nozzle reserved hole on the support plate recessed cavity fixing plate (21) and is clamped into the installation groove (36) on the support plate (22) to inject oil mist into the measuring section (2); the recessed cavity (25) is installed on the support plate recessed cavity fixing plate (21) behind the support plate (22) and is provided with a plurality of recessed cavity (25) nozzles (27) and an igniter (31). The inlet end of the exhaust section is communicated with the outlet end of the measuring section (2), and the shell of the exhaust section adopts a double-wall structure, and a closed third cooling circulating water flow channel (32-3) is formed between the inner wall and the outer wall; the outer wall of the exhaust section is provided with a third cooling circulating water inlet (15-3) and a third cooling circulating water outlet (9-3) which are communicated with the third cooling circulating water flow channel (32-3).

2. The integrated reheat test article of claim 1, wherein, The exhaust section is sequentially connected by flanges from a rectangular tee joint (5), a first square-to-round joint (4-1), a second square-to-round joint (4-2), an upper U-shaped exhaust pipe (6), a lower U-shaped exhaust pipe (8), and a circular tee joint (7) at the end, the inlet end of the rectangular tee joint (5) is connected by a flange with the outlet end of the measuring section (2), the two outlet ends of the rectangular tee joint (5) are respectively connected by flanges with one end of the first square-to-round joint (4-1) and the second square-to-round joint (4-2), the other end of the first square-to-round joint (4-1) and the second square-to-round joint (4-2) are respectively connected by flanges with one end of the upper U-shaped exhaust pipe (6) and the lower U-shaped exhaust pipe (8), the other end of the upper U-shaped exhaust pipe (6) and the lower U-shaped exhaust pipe (8) are respectively connected by flanges with the two inlet ends of the circular tee joint (7), and the outlet end of the circular tee joint (7) is used to lead out high-temperature combustion gas.

3. The integrated reheat test article of claim 2, wherein, A plurality of cooling spray rods (16) are arranged in the upper U-shaped exhaust pipe (6) and the lower U-shaped exhaust pipe (8), and a water collecting tank (17) for collecting condensed water or non-evaporated cooling liquid is arranged at the bottom of the lower U-shaped exhaust pipe (8), and a drain interface (20) is arranged at the bottom of the water collecting tank (17).

4. The integrated reheat test article of claim 1, wherein, A temperature probe interface (12) for detecting the temperature of the incoming flow is arranged on the shell of the measuring section (2) between the pitot tube / total pressure probe interface (11) and the support plate concave cavity fixing plate (21); the number of total temperature and total pressure probe interfaces (14) is not less than 2, and they are symmetrically distributed on the shell of the measuring section (2); the inlet end of the inlet section (1) is connected by a flange with the gas supply system, the inlet end of the measuring section (2) is connected by a flange with the outlet end of the inlet section (1), and the inlet end of the exhaust section is connected by a flange with the outlet end of the measuring section (2).

5. The integrated reheat test article of claim 2, wherein, An upper view window assembly (13), a left / right view window assembly (19) are respectively arranged on the top and both sides of the shell of the measuring section (2), and a rear view window assembly (18) is arranged on the rear shell of the rectangular tee joint (5); the upper view window assembly (13) and the left / right view window assembly (19) are connected with the shell of the measuring section (2) through movable flanges, and the rear view window assembly (18) is connected with the rear shell of the rectangular tee joint (5) through a movable flange.

6. The integrated reheat test article of claim 5, wherein, The upper view window assembly (13), the left view window assembly, the right view window assembly, and the rear view window assembly (18) have the same structure and include a glass plate (39), an inner glass sleeve (40), an outer glass sleeve (43), a glass sleeve pressing plate (38), and a high-temperature and high-pressure sealing gasket (33); the inner glass sleeve (40) and the outer glass sleeve (43) are respectively sleeved on the inner side and the outer side of the glass plate (39) and are positioned through a matched slot structure (42); the glass sleeve pressing plate (38) axially presses and fixes the glass plate (39), the inner glass sleeve (40), and the outer glass sleeve (43) on the shell of the measuring section (2) or the exhaust section through bolts; the high-temperature and high-pressure sealing gasket (33) is arranged between the glass plate (39) and the inner glass sleeve (40) and between the glass plate (39) and the outer glass sleeve (43).

7. The integrated reheat test article of claim 1, wherein, Also include ignition (31) plug (26), recessed cavity nozzle plug (28), support plate nozzle plug (29), respectively for ignition (31), recessed cavity nozzle (27) and support plate nozzle (23) are sealed for processing.

8. The integrated reheat test article of claim 1, wherein, The support plate (22) is spliced by mortise and tenon joint of the body and the support plate trailing edge (24); after the support plate (22) is embedded into the clamping groove (34), the fixed connection of the support plate (22) and the support plate recessed cavity fixed plate (21) is realized through the screw (30).

9. The integrated reheat test article of claim 8, wherein, The distance between the support plate trailing edges (24) of adjacent support plates (22) is 40-140 mm.

10. The integrated reheat test article of claim 1, wherein, The recessed cavity (25) is a boss type structure with a front inclination angle, the recessed cavity nozzle (27) and the igniter (31) are arranged on the front inclined surface of the recessed cavity (25), and the injection direction is towards the flow direction.

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