A high temperature particulate environment test system

Abstract

The application relates to a high-temperature particle environment test system, which comprises a high-pressure gas supply system, a particle feeding system, a fuel system, a support and a test mechanism arranged on the support. The test mechanism comprises a test cabin and a combustion chamber. The gas inlet end of the test cabin is communicated with the outlet of the combustion chamber through a particle gas flow mixing pipe. The particle feeding system is communicated with the particle gas flow mixing pipe. The outlet end of the particle gas flow mixing pipe is provided with a conical nozzle extending into the test cabin. A target surface is arranged opposite the outlet of the conical nozzle in the test cabin. A test sample is arranged on the target surface and faces the outlet of the conical nozzle. An adjusting mechanism is arranged on the test cabin. An exhaust system is arranged at the gas outlet end of the test cabin. The application can form a high-temperature gas flow containing particles and realize uniform particle impact test.

Description

Technical Field

[0001] This invention relates to the field of high-temperature material performance testing technology, and in particular to a high-temperature particle environment testing system. Background Technology

[0002] Hot-end components of gas turbines, aero engines, rocket engines, and other similar devices are often subjected to erosion or deposition by high-temperature particles, leading to surface damage or thermal failure, reduced service life and reliability, and even malfunction. Therefore, it is necessary to conduct erosion damage and thermal failure tests on materials and hot-end components in high-temperature particulate environments, and to design and develop a device suitable for high-temperature particulate environment testing of hot-end components in these devices. Currently, there is no complete set of test systems in the industry that can simultaneously achieve high-temperature particle environment simulation, uniform and controllable particle transport, multi-dimensional adjustment of sample posture, and closed-loop management of the entire process. It is impossible to reproduce the service conditions of hot-end components well, and it is difficult to meet the requirements for structural and material performance evaluation.

[0003] Therefore, there is an urgent need to develop a high-temperature particle environment testing system that can simulate a real high-temperature particle environment, achieve uniform particle transport, allow for multi-dimensional adjustment of sample posture, and possess full-process controllability, so as to meet the performance evaluation and assessment requirements of advanced power device hot-end components and their materials under different working conditions. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a high-temperature particle environment testing system that can generate a high-temperature airflow containing particles to achieve uniform particle impact testing.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a high-temperature particulate environment test system, including a high-pressure gas supply system, a particulate feeding system, a fuel system, a support, and a test mechanism mounted on the support. The test mechanism includes a test chamber and a combustion chamber. The air inlet of the test chamber is connected to the outlet of the combustion chamber through a particulate airflow mixing pipe. The combustion chamber is used to supply high-temperature airflow to the particulate airflow mixing pipe. The particulate feeding system is connected to the particulate airflow mixing pipe and is used to feed test particles into the particulate airflow mixing pipe. The particulate airflow mixing pipe is used to mix the high-temperature airflow and the test particles to form a high-temperature airflow containing particles. The outlet end of the particulate airflow mixing pipe is equipped with a conical nozzle extending into the test chamber. Inside the test chamber, a target surface is provided opposite to the outlet of the conical nozzle. A sample is placed on the target surface facing the outlet of the conical nozzle. The test chamber is equipped with an adjustment mechanism, which is used to move the target surface in a direction perpendicular to the axis of the conical nozzle and can adjust the angle between the sample and the axis of the conical nozzle. The outlet end of the test chamber is equipped with an exhaust system, which is used to discharge the high-temperature airflow containing particles.

[0006] As a preferred embodiment, the conical nozzle includes a first conical section, a long sleeve section, a second conical section, and a short sleeve section connected in sequence. The large end of the first conical section is connected to the particulate airflow mixing pipe, and the small end is connected to the long sleeve section. The small end of the second conical section is connected to the long sleeve section, and the large end is connected to the short sleeve section.

[0007] As a preferred embodiment, the sample is plate-shaped, and the target surface is provided with a groove that mates with the sample. The target surface is also provided with a clamping mechanism for pressing the sample into the groove.

[0008] As a preferred embodiment, the clamping mechanism includes a pressure plate, which is fixed to the target surface by locking screws, and the pressure plate part is in contact with the sample.

[0009] As a preferred embodiment, the adjustment mechanism includes an adjustment screw, an adjustment port located at the upper end of the test chamber, and a flange located on the adjustment port. The flange has an inner hole, and a lifting sleeve is installed inside the inner hole of the flange. The lifting sleeve includes a horizontal adjustment part located at the upper end of the flange and a limiting sleeve part located inside the inner hole of the flange. A lifting connecting rod is provided inside the limiting sleeve part. One end of the adjustment screw passes through the horizontal adjustment part and the lifting connecting rod in sequence, with the target surface located at the extended end. The other end is provided with a rotating handle. The adjustment screw is threadedly engaged with the horizontal adjustment part. The adjustment screw is also provided with a fastening bolt for locking the adjustment screw. The lifting connecting rod is provided with a guide through hole for the adjustment screw to pass through.

[0010] As a preferred embodiment, the adjustment mechanism includes an adjustment screw, an adjustment port located at the upper end of the test chamber, and a flange located on the adjustment port. The flange has an inner hole, and a lifting sleeve is installed in the inner hole of the flange. The lifting sleeve includes a horizontal adjustment part located at the upper end of the flange and a limiting sleeve part rotatably located in the inner hole of the flange. A lifting connecting rod is slidably arranged in the limiting sleeve part. One end of the adjustment screw passes through the horizontal adjustment part and the lifting connecting rod in sequence, and the target surface is located at the extended end. The other end is provided with a rotating handle. The adjustment screw is threadedly engaged with the horizontal adjustment part. The adjustment screw is also provided with a fastening bolt for locking the adjustment screw. The lifting connecting rod is provided with a guide through hole for the adjustment screw to pass through. The outer wall of the limiting sleeve is provided with a spiral groove extending along its axial direction, the outer wall of the lifting connecting rod is provided with a limiting shaft that passes through the spiral groove and slides with the spiral groove, and the inner wall of the flange inner hole is provided with a vertical groove that slides with the limiting shaft along its axial direction.

[0011] As a preferred option, a water cooling system is also included. The water cooling system has an outlet and a return water end. A water cooling containment space is provided between the outer wall and the inner wall of the test chamber. The water cooling containment space has an inlet at the lower end and an outlet at the upper end. The inlet is connected to the outlet of the water cooling system, and the outlet is connected to the return water end of the water cooling system.

[0012] As a preferred embodiment, the particulate airflow mixing pipe and the outer wall of the combustion chamber are respectively provided with a first cooling pipe and a second cooling pipe, and the water outlet of the water cooling system, the first cooling pipe, the second cooling pipe and the water return of the water cooling system are connected in sequence, and both the first cooling pipe and the second cooling pipe are spiral-shaped.

[0013] As a preferred embodiment, the exhaust system includes a conical exhaust sleeve connected to the test chamber and an exhaust pipe connected to the conical exhaust sleeve. The exhaust pipe is equipped with an exhaust valve and is also connected to a high-temperature cyclone separator via a pipeline.

[0014] As a preferred option, a detection system is also included, which includes a high-speed camera and a pressure sensor. Temperature sensors are installed on the test chamber, the particulate airflow mixing pipe and the combustion chamber. The pressure sensor is located at the outlet of the conical nozzle. A pressure sensor is also installed inside the test chamber. An observation window is opened on the side wall of the test chamber, and the high-speed camera is positioned directly opposite the observation window.

[0015] The beneficial effects of this application are as follows: 1. This invention achieves high-temperature operating conditions that simulate the temperature and speed of turbine gas in an aero-engine through the coordinated control of the combustion chamber, high-pressure gas supply system, fuel supply system, etc., and with the quantitative and stable mixing of the particle supply system, the test particles are transported synchronously with the high-temperature gas flow to form a stable particle environment test system.

[0016] 2. By setting up a particle airflow mixing pipe and a conical nozzle, this application achieves full and uniform mixing of particles with the high-temperature mainstream, which can form a flow field with uniform particle concentration and velocity in the target impact area, ensuring the uniformity and stability of particle erosion load.

[0017] 3. This application achieves target surface adjustment in two dimensions, left and right, and up and down, by setting an adjustment mechanism, and also has a locking function, which can fully simulate the impact conditions of particles from multiple angles and has a wide range of applications.

[0018] 4. This application, by setting up a water-cooling system and a water-cooled containment space, can effectively cool the test chamber, reduce the surface temperature of the test chamber, and achieve thermal protection of the test chamber. At the same time, the particulate airflow mixing pipe and the outer wall of the combustion chamber are respectively equipped with a first cooling pipe and a second cooling pipe, so as to achieve comprehensive cooling of all high-temperature components and enable the entire test system to operate stably for a long time under high-temperature conditions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the present invention.

[0020] Figure 2 This is a schematic diagram of the experimental mechanism in this invention.

[0021] Figure 3 This is a cross-sectional view of the test chamber in this invention.

[0022] Figure 4 This is a cross-sectional view of the adjusting mechanism in this invention.

[0023] Illustration markings: 1. Test mechanism, 11. Adjustment mechanism, 111. Rotary handle, 112. Adjustment screw, 113. Fastening bolt, 114. Lifting sleeve, 115. Flange, 1151. Vertical slide, 116. Lifting connecting rod, 1161. Limiting shaft, 117. Target surface, 118. Pressure plate, 119. Settling tank, 12. Test chamber, 121. Water-cooled containment space, 13. Particle airflow mixing pipe, 131. Conical nozzle, 14. Combustion chamber, 2. Support, 3. Particle feeding system, 4. High-pressure air supply system, 5. Fuel system, 6. Control system, 7. Water cooling system, 8. Exhaust system, 81. Conical exhaust sleeve, 82. Exhaust pipe. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that, in the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Please see Figures 1-4This invention provides a high-temperature particulate environment testing system, including a high-pressure gas supply system 4, a particulate feeding system 3, a fuel system 5, a support 2, and a testing mechanism 1 mounted on the support 2. The testing mechanism 1 includes a test chamber 12 and a combustion chamber 14. The air inlet of the test chamber 12 is connected to the outlet of the combustion chamber 14 via a particulate airflow mixing pipe 13. The combustion chamber 14 is used to supply high-temperature gas flow to the particulate airflow mixing pipe 13. The particulate feeding system 3 is connected to the particulate airflow mixing pipe 13 via a pipeline and is used to feed test particles into the particulate airflow mixing pipe 13. The particulate airflow mixing pipe 13 is used to mix the high-temperature gas flow with... Test particles are used to form a high-temperature airflow containing particles. The outlet end of the particle airflow mixing pipe 13 is provided with a conical nozzle 131 extending into the test chamber 12. The test chamber 12 is provided with a target surface 117 opposite to the outlet of the conical nozzle 131. The target surface 117 is provided with a sample facing the outlet of the conical nozzle 131. The test chamber 12 is provided with an adjustment mechanism 11, which is used to drive the target surface 117 to move in a direction perpendicular to the axis of the conical nozzle 131 and can adjust the angle between the sample and the axis of the conical nozzle 131. The outlet end of the test chamber 12 is provided with an exhaust system 8, which is used to discharge the high-temperature airflow containing particles.

[0026] The intake end of the combustion chamber 14 is connected to the high-pressure air supply system 4 and the fuel system 5 via pipelines. By adjusting the high-pressure air supply flow rate and the fuel supply amount, stable combustion is achieved within the combustion chamber 14, thereby generating a stable high-temperature airflow. An igniter is also installed within the combustion chamber 14. The combustion chamber 14 can utilize an existing combustion chamber structure, which will not be described in detail here. The pellet feeding system 3 can employ an existing fine powder feeder, whose feed port is connected to the pellet airflow mixing pipe 13 via a pipeline.

[0027] Combination Figure 3 As shown, the conical nozzle 131 includes a first conical section, a long sleeve section, a second conical section, and a short sleeve section connected in sequence. The large end of the first conical section is connected to the particle-gas mixing pipe 13, and the small end is connected to the long sleeve section. The small end of the second conical section is connected to the long sleeve section, and the large end is connected to the short sleeve section. By setting the conical nozzle 131, a uniform and stable particle erosion area can be formed on the sample surface. The pipe diameter of the conical nozzle 131 can be adjusted according to the size of the test sample.

[0028] The sample is plate-shaped and combined Figure 4 As shown, the target surface 117 is provided with a groove that mates with the sample, and the target surface 117 is also provided with a clamping mechanism for pressing the sample into the groove. The clamping mechanism includes a pressure plate 118, which is fixed to the target surface 117 by locking screws, and part of the pressure plate 118 abuts against the sample.

[0029] The test facility 1 of this application adopts the following... Figure 2 As shown, it is placed on the ground, combined with Figure 3 andFigure 4 As shown, the adjustment mechanism 11 includes an adjustment screw 112, an adjustment port located at the upper end of the test chamber 12, and a flange 115 located on the adjustment port. The lower end of the flange 115 has a recess 119, and the adjustment port has a protrusion that engages with the recess 119. The flange 115 has an inner hole, and a lifting sleeve 114 is installed within the inner hole. The lifting sleeve 114 includes a horizontal adjustment part located at the upper end of the flange 115 and a limiting sleeve part rotatably disposed within the inner hole of the flange 115. A lifting connecting rod 116 is slidably disposed within the limiting sleeve part. One end of the adjustment screw 112 passes sequentially through the horizontal adjustment part and the lifting connecting rod 116, with a target surface 117 located at the extended end. The other end has a rotating handle 111. The adjustment screw 112 is connected to the horizontal adjustment part... The adjusting screw 112 is threaded and has a fastening bolt 113 for locking it. The lifting connecting rod 116 has a guide hole that passes through the adjusting screw 112. The outer wall of the limiting sleeve has a spiral groove extending along its axial direction. The outer wall of the lifting connecting rod 116 has a limiting shaft 1161 that passes through and slides with the spiral groove. The inner wall of the flange 115 has a vertical groove 1151 that slides with the limiting shaft 1161 along its axial direction. When the lifting sleeve 114 is rotated, the lifting connecting rod 116 moves up and down because the limiting shaft 1161 engages with both the spiral groove and the vertical groove 1151. This causes the target surface 117 to adjust vertically. The rotating handle 111 is connected to the adjusting screw 112 and allows for left-right angle adjustment of the target surface 117. The fastening bolt 113 can be used to lock it in place. It should be noted that any parts not detailed in this application are prior art.

[0030] Specifically, it also includes a water cooling system 7, which has an outlet and a return end. A water cooling housing space 121 is provided between the outer and inner walls of the test chamber 12. The water cooling housing space 121 has an inlet at its lower end and an outlet at its upper end. The inlet is connected to the outlet of the water cooling system 7, and the outlet is connected to the return end of the water cooling system 7. The outer walls of the particulate airflow mixing pipe 13 and the combustion chamber 14 are respectively provided with a first cooling pipe and a second cooling pipe. The outlet, the first cooling pipe, the second cooling pipe, and the return end of the water cooling system 7 are connected in sequence. Both the first cooling pipe and the second cooling pipe are spiral-shaped.

[0031] More specifically, the exhaust system 8 includes a conical exhaust sleeve 81 connected to the test chamber 12 and an exhaust pipe 82 connected to the conical exhaust sleeve 81. An exhaust valve is provided on the exhaust pipe 82, and the exhaust pipe 82 is also connected to a high-temperature cyclone separator through a pipeline.

[0032] In addition, a detection system and a control system 6 are included. The detection system includes a high-speed camera and a pressure sensor. Temperature sensors are installed on the test chamber 12, the particulate airflow mixing pipe 13, and the combustion chamber 14. The pressure sensor is located at the outlet of the conical nozzle 131, and a pressure sensor is also installed inside the test chamber 12 to monitor the pressure stability of the test flow field. An observation window is opened on the side wall of the test chamber 12, and a high-speed camera is positioned directly opposite the observation window to capture the particulate impact process and the evolution of damage on the sample surface.

[0033] The control system 6 includes a central control unit, which is connected to the detection system, exhaust system 8, water cooling system 7, high-pressure gas supply system 4, pellet feeding system 3, and fuel system 5 respectively, to realize intelligent control and monitoring of combustion temperature, pellet flow rate and device structure temperature throughout the process, and to achieve automated and stable operation of the entire test.

[0034] Of course, the present invention is not limited to the embodiments described above. Several other embodiments based on the design concept of the present invention are also provided below.

[0035] For example, in other embodiments, unlike the embodiments described above, the adjustment mechanism 11 includes an adjustment screw 112, an adjustment port located at the upper end of the test chamber 12, and a flange 115 located on the adjustment port. The flange 115 has an inner hole, and a lifting sleeve 114 is installed in the inner hole of the flange 115. The lifting sleeve 114 includes a horizontal adjustment part located at the upper end of the flange 115 and a limiting sleeve part located in the inner hole of the flange 115. A lifting connecting rod 116 is provided in the limiting sleeve part. One end of the adjustment screw 112 passes through the horizontal adjustment part and the lifting connecting rod 116 in sequence, with a target surface 117 located at the extended end. The other end is provided with a rotating handle 111. The adjustment screw 112 is threadedly engaged with the horizontal adjustment part. The adjustment screw 112 is also provided with a fastening bolt 113 for locking the adjustment screw 112. The lifting connecting rod 116 is provided with a guide through hole for the adjustment screw 112 to pass through. The rotating handle 111 allows for left-right and up-down angle adjustment of the target surface 117, and can be locked using the fastening bolt 113.

[0036] For example, in other embodiments, unlike the embodiments described above, the horizontal adjustment part of this application is provided with positioning bolts, and the flange 115 is provided with a plurality of threaded countersunk holes along its circumference that are threaded to engage with the positioning bolts.

[0037] This embodiment provides a high-temperature particle erosion test method based on the above system, including the following steps: The test sample is installed on the target surface 117 of the adjustment mechanism 11 and pressed and fixed by the pressure plate 118; according to the preset impact angle of the test, the circumferential angle of the target surface 117 is adjusted by rotating the handle 111, and the vertical position of the target surface 117 is adjusted by the lifting sleeve 114; after adjustment, the fastening bolts 113 are tightened to lock the system. Then, the hatch of the test chamber 12 and the exhaust valve of the exhaust system 8 are closed, and the airtightness of the entire test system is tested.

[0038] Start the water cooling system 7, set the cooling water supply temperature and rated circulation flow rate to ensure that the test requirements are met, and check that the cooling water circulation of the water cooling system 7 is normal and there are no leaks; start the control system 6 and the detection system, complete the calibration and self-test of each sensor and high-speed camera, and ensure that the data acquisition function is normal; start the high-pressure air supply system 4, introduce compressed air into the combustion chamber 14, and purge for 3-5 minutes to remove residual impurities in the pipeline and test chamber 12.

[0039] Keep the high-pressure air supply system 4 open, adjust the air flow, start the fuel system 5, set the fuel supply amount, and complete the ignition and combustion through the igniter matched with the combustion chamber 14; adjust the airflow temperature, pressure and flow rate at the outlet of the combustion chamber 14 in real time through the control system 6 to stabilize them within the preset range, and after all parameters are stabilized for 5 minutes, enter the particle erosion stage.

[0040] The particle feeding system 3 is started, the particle flow rate is set, and quartz sand is quantitatively added into the high-temperature mainstream airflow in the particle airflow mixing pipe 13. After the particles and high-temperature airflow are fully mixed in the particle airflow mixing pipe 13, the airflow velocity and direction are uniformly impacted on the sample surface through the conical nozzle 131. During the erosion process, the detection system collects core test data such as temperature and pressure in real time, and the high-speed camera continuously records the particle impact process and the evolution of damage on the sample surface until the preset erosion time is reached.

[0041] After the erosion test is completed, the particle feeding system 3 is shut down first to stop the powder feeding; then the fuel system 5 is shut down to stop the fuel supply, while the high-pressure air supply system 4 continues to supply high-pressure air to cool the entire test system. After the temperature inside the combustion chamber 14 and the test mechanism 1 drops below 100°C, the high-pressure air supply system 4 is shut down. After the overall system temperature drops to room temperature, the water cooling system 7 and the detection system are shut down, the test data is exported and saved, and finally the test chamber 12 is opened to take out the sample, thus completing this high-temperature particle erosion test.

[0042] Supplementary Example for Extreme Operating Conditions. This example is used for extreme high-temperature erosion conditions of aero-engine blade materials. The core parameters are adjusted as follows: adjust the airflow and fuel supply to make the airflow in combustion chamber 14 reach the preset temperature and velocity, and set the erosion duration; the remaining operation steps are the same as in the above example. It can realize particle erosion tests under high temperature and high-speed airflow, flexibly adjust parameters such as airflow temperature and velocity, and achieve full coverage of various service conditions of aero-engine hot-end components, meeting the performance evaluation requirements under different extreme conditions.

[0043] It should be noted that the above embodiments are only used to illustrate the present invention, but the present invention is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A high-temperature particulate environment testing system, comprising a high-pressure gas supply system (4), a particulate feeding system (3), a fuel system (5), a support (2), and a testing mechanism (1) mounted on the support (2), the testing mechanism (1) comprising a testing chamber (12) and a combustion chamber (14), characterized in that, The air inlet of the test chamber (12) is connected to the outlet of the combustion chamber (14) through the particle airflow mixing pipe (13). The combustion chamber (14) is used to deliver high-temperature airflow to the particle airflow mixing pipe (13). The particle feeding system (3) is connected to the particle airflow mixing pipe (13) and is used to feed test particles into the particle airflow mixing pipe (13). The particle airflow mixing pipe (13) is used to mix the high-temperature airflow and the test particles to form a high-temperature airflow containing particles. The outlet end of the particulate airflow mixing pipe (13) is provided with a conical nozzle (131) extending into the test chamber (12). The test chamber (12) is provided with a target surface (117) opposite to the outlet of the conical nozzle (131). The target surface (117) is provided with a sample facing the outlet of the conical nozzle (131). The test chamber (12) is provided with an adjustment mechanism (11). The adjustment mechanism (11) is used to drive the target surface (117) to move in a direction perpendicular to the axis of the conical nozzle (131) and can adjust the angle between the sample and the axis of the conical nozzle (131). The test chamber (12) is equipped with an exhaust system (8) at the air outlet, which is used to discharge the high-temperature airflow containing particles.

2. The high-temperature particulate environment testing system according to claim 1, characterized in that, The conical nozzle (131) includes a first conical section, a long sleeve section, a second conical section and a short sleeve section connected in sequence. The large end of the first conical section is connected to the particulate airflow mixing pipe (13) and the small end is connected to the long sleeve section. The small end of the second conical section is connected to the long sleeve section and the large end is connected to the short sleeve section.

3. The high-temperature particle environment testing system according to claim 2, characterized in that, The sample is plate-shaped, and the target surface (117) is provided with a groove that matches the sample. The target surface (117) is also provided with a pressing mechanism for pressing the sample into the groove.

4. The high-temperature particle environment testing system according to claim 3, characterized in that, The clamping mechanism includes a pressure plate (118), which is fixed to the target surface (117) by a locking screw, and the pressure plate (118) part is in contact with the sample.

5. The high-temperature particulate environment testing system according to claim 1, characterized in that, The adjustment mechanism (11) includes an adjustment screw (112), an adjustment port located at the upper end of the test chamber (12), and a flange (115) located on the adjustment port. The flange (115) has an inner hole, and a lifting sleeve (114) is installed in the inner hole of the flange (115). The lifting sleeve (114) includes a horizontal adjustment part located at the upper end of the flange (115) and a limiting sleeve part located in the inner hole of the flange (115). A lifting connecting rod (116) is provided in the limiting sleeve part. One end of the adjustment screw (112) passes through the horizontal adjustment part and the lifting connecting rod (116) in sequence, and the target surface (117) is located at the extended end. The other end is provided with a rotating handle (111). The adjustment screw (112) is threadedly engaged with the horizontal adjustment part. The adjustment screw (112) is also provided with a fastening bolt (113) for locking the adjustment screw (112). The lifting connecting rod (116) is provided with a guide through hole that passes through the adjustment screw (112).

6. The high-temperature particulate environment testing system according to claim 1, characterized in that, The adjustment mechanism (11) includes an adjustment screw (112), an adjustment port located at the upper end of the test chamber (12), and a flange (115) located on the adjustment port. The flange (115) has an inner hole, and a lifting sleeve (114) is installed in the inner hole of the flange (115). The lifting sleeve (114) includes a horizontal adjustment part located at the upper end of the flange (115) and a limiting sleeve part rotatably located in the inner hole of the flange (115). A lifting connecting rod (116) is slidably provided in the limiting sleeve part. One end of the adjustment screw (112) passes through the horizontal adjustment part and the lifting connecting rod (116) in sequence, and the target surface (117) is located at the extended end. The other end is provided with a rotating handle (111). The adjustment screw (112) is threadedly engaged with the horizontal adjustment part. The adjustment screw (112) is also provided with a fastening bolt (113) for locking the adjustment screw (112). The lifting connecting rod (116) is provided with a guide through hole that passes through the adjustment screw (112). The outer wall of the limiting sleeve is provided with a spiral groove extending along its axial direction, the outer wall of the lifting link (116) is provided with a limiting shaft (1161) that passes through the spiral groove and slides with the spiral groove, and the inner wall of the flange (115) is provided with a vertical groove (1151) that slides with the limiting shaft (1161) along its axial direction.

7. The high-temperature particulate environment testing system according to claim 1, characterized in that, It also includes a water cooling system (7), which has an outlet and a return end. A water cooling containment space (121) is provided between the outer wall and the inner wall of the test chamber (12). The water cooling containment space (121) has an inlet at the lower end and an outlet at the upper end. The inlet is connected to the outlet of the water cooling system (7), and the outlet is connected to the return end of the water cooling system (7).

8. A high-temperature particulate environment testing system according to claim 7, characterized in that, The outer walls of the particulate airflow mixing pipe (13) and the combustion chamber (14) are respectively provided with a first cooling pipe and a second cooling pipe. The water outlet of the water cooling system (7), the first cooling pipe, the second cooling pipe and the water return end of the water cooling system (7) are connected in sequence. The first cooling pipe and the second cooling pipe are both spiral.

9. A high-temperature particulate environment testing system according to claim 8, characterized in that, The exhaust system (8) includes a conical exhaust sleeve (81) connected to the test chamber (12) and an exhaust pipe (82) connected to the conical exhaust sleeve (81). An exhaust valve is provided on the exhaust pipe (82), and the exhaust pipe (82) is also connected to a high-temperature cyclone separator through a pipeline.

10. A high-temperature particulate environment testing system according to claim 8, characterized in that, It also includes a detection system, which includes a high-speed camera and a pressure sensor. Temperature sensors are provided on the test chamber (12), the particulate airflow mixing pipe (13) and the combustion chamber (14). The pressure sensor is located at the outlet of the conical nozzle (131). A pressure sensor is also provided inside the test chamber (12). An observation window is provided on the side wall of the test chamber (12), and the high-speed camera is positioned facing the observation window.

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