Combustion experiment system of rotary fuel gas generator

Abstract

The invention discloses a combustion experiment system of a rotary fuel gas generator. The combustion experiment system comprises a rotary fuel gas generator experiment table, a supply system, a measurement and control system and an ignition system, the rotary fuel gas generator experiment table is respectively connected with the supply system, the ignition system and the measurement and control system; the supply system is used for stably supplying fuel and oxidant gas to the fuel gas generator on the rotary fuel gas generator experiment table, and the gas flow can be adjusted through a computer; the ignition system is used for igniting the rotary fuel gas generator, the measurement and control system is used for collecting and recording the temperature, pressure and rotating speed of the rotary fuel gas generator during working, and the gas flow and pressure can be adjusted through a computer, so that closed-loop control over the rotating speed of the rotary fuel gas generator is achieved. The combustion performance of the rotary gas generator under different flow rates and equivalence ratios can be simulated, closed-loop control can be carried out on the rotating speed of the rotary gas generator, and accurate control over the combustion process is achieved.

Description

Technical Field

[0001] The invention relates to the field of gas generator test benches, in particular to a rotating gas generator combustion test system. Background Art

[0002] In aircraft engines, turbine blades are listed as the first key parts because they are in the worst environment. Their performance level, especially the temperature resistance limit, is an important indicator of the engine's advanced level. As the engine thrust-to-weight ratio increases, the temperature before the turbine also increases. For hypersonic aircraft, the higher the flight Mach number, the higher the total temperature of the incoming flow, which can easily exceed the temperature resistance limit of the turbine. At this time, it is difficult for the combustion chamber to add heat, and the thermodynamic cycle does not exist. In addition, designing a cooling structure on the turbine is a very challenging task, which requires comprehensive consideration of multiple factors such as heat load, material properties, manufacturing process, flow characteristics, etc., in order to ensure the reliability and life of the blades while increasing the turbine inlet temperature. The rotary gas generator is a rotary combustion device that can output shaft power and thrust at the same time and has a simple and reliable structure. It can replace the work of the turbine, thereby fundamentally solving the serious restriction problem of the temperature resistance limit of the existing aircraft engine turbine on the efficiency of the thermodynamic cycle, and because of its simple and reliable structure, it is easy to design a cooling structure, thereby improving the combustion efficiency. As a brand-new technology, the design and performance optimization of rotary gas generator are crucial. Therefore, an experimental system is needed to simulate the combustion performance of rotary gas generator at different flow rates and equivalence ratios, so as to provide experimental data support for the design and optimization of rotary gas generator.

[0003] Traditional gas generator designs usually adopt static structures, which make it difficult to achieve stable combustion at high speeds. The design of static gas generator test benches is relatively simple, and there is no need to consider the complex factors caused by rotation. Compared with static gas generator test benches, rotating gas generator test benches face a series of difficulties and challenges in design and operation. First, the rotating gas generator requires precise dynamic balance to avoid excessive vibration during high-speed rotation, thereby avoiding damage to the equipment or affecting the experimental results. Secondly, the gas generator and the gas supply pipeline need to be sealed with the external environment in the rotating state to prevent gas leakage, and the stable connection between the rotating gas generator and the gas supply system must also be ensured. In addition, the centrifugal force generated by high-speed rotation will affect the flow characteristics, mixing effect and combustion process of the gas in the combustion chamber, which requires special research. In addition, in the rotating state, the control of the combustion process (such as ignition, combustion stability, etc.) becomes more difficult. For example, after ignition, the igniter should be able to be disengaged in time to avoid interference with the rotating gas generator, resulting in experimental failure and safety issues. In view of these difficulties, when designing and operating the rotating gas generator test bench, it is necessary to comprehensively consider the knowledge of multiple disciplines such as mechanics, thermodynamics, and fluid mechanics, and adopt corresponding technical measures to overcome these challenges.

[0004] The combustion process of existing rotary gas generators often lacks precise control means, resulting in low combustion efficiency and affecting the stability and safety of the entire system. In addition, the lack of an effective experimental system to simulate and test the performance of rotary gas generators under different operating conditions limits in-depth research on their design and optimization. Therefore, the development of a combustion experimental system and a combustion control method that can accurately measure and control key performance parameters (such as speed, temperature, and pressure) of a rotary gas generator under working conditions is of great significance for improving combustion efficiency, optimizing design, and enhancing system reliability. Summary of the invention

[0005] The present invention aims to solve the above problems in the prior art and provides a rotary gas generator combustion test system, which can simulate the combustion performance under different flow rates and equivalence ratios and collect key parameters in real time so as to accurately control the combustion process of the rotary gas generator. Through this system, the rotation speed of the rotary gas generator can be controlled in a closed loop, thereby effectively improving the combustion efficiency, detecting the combustion state in real time, and accurately controlling the rotation speed of the rotary gas generator, providing an effective experimental means for the design, optimization and performance testing of the rotary gas generator.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A rotary gas generator combustion test system comprises a rotary gas generator test bench, a supply system, a measurement and control system and an ignition system; the rotary gas generator test bench is connected to the supply system, the ignition system and the measurement and control system respectively;

[0008] The supply system is used to stably supply fuel and oxidant gas to the gas generator on the rotary gas generator test bench, and can adjust the gas flow rate through a computer; the ignition system is used to ignite the rotary gas generator, and the measurement and control system is used to collect and record the temperature, pressure and speed of the rotary gas generator when it is working, and can adjust the gas flow rate and pressure through a computer to achieve closed-loop control of the speed of the rotary gas generator.

[0009] Furthermore, the supply system includes an air compressor, an air cylinder, a methane cylinder, a drying box, an air flow meter, a methane flow meter, valve one, valve two, valve three and a premixing box; the valve one is arranged on the pipeline connecting the air compressor and the air cylinder, the valve two and the air flow meter are arranged on the air supply pipeline connecting the drying box and the premixing box, and the valve three and the methane flow meter are arranged on the methane supply pipeline connecting the methane cylinder and the premixing box; the compressed air generated by the air compressor is transported to the air cylinder by the pipeline, and the air is controlled by the valve one; thereafter, when the valve two is opened, the air will flow out of the air cylinder, be dried in the drying box, and then flow through the valve two and the air flow meter in sequence, and then flow into the premixing box to be mixed with the methane gas; the methane cylinder stores high-pressure gaseous methane, and when the valve three is opened, the gaseous methane flows out of the methane cylinder, flows through the valve three and the methane flow meter in sequence, and enters the premixing box to be mixed with the air.

[0010] Furthermore, the rotary gas generator test bench includes a test bench frame, and a dynamic and static sealing device, a rotary gas generator assembly, a flexible coupling, a compressor assembly, and bearing seats 1, 2, and 3 located at the connection points for fixing and supporting the bearings, which are fixed on the test bench frame and connected in sequence through three bearings; one end of the dynamic and static sealing device is connected to a stationary fuel supply pipeline connected to the premixing box, and the other end is connected to the shaft of the rotary gas generator assembly through a bearing, and rotates with the rotary combustion chamber; the rotary gas generator assembly includes a rotary combustion chamber, a nozzle, and a convergent nozzle, and the premixed gas of methane and air enters the rotary combustion chamber through the dynamic and static sealing device, and is then ignited by the ignition system, and the high-temperature and high-pressure gas generated by the combustion flows in the nozzle, and is accelerated to be ejected through the convergent nozzle, driving the rotary gas generator to rotate.

[0011] Furthermore, the ignition system includes a quick-plug ignition nozzle and a high-energy igniter, the quick-plug ignition nozzle and the high-energy igniter are connected by a cable and are threadedly connected to the side wall of the combustion chamber of the rotating gas generator assembly; the connection between the ignition nozzle body of the quick-plug ignition nozzle and the ignition cable is a quick plug.

[0012] Furthermore, the measurement and control system includes a temperature sensor, a pressure sensor, a speed sensor, an acquisition card, a signal amplifier and a computer. The temperature sensor is arranged at the outlet of one of the nozzles of the rotary gas generator assembly to measure the temperature at the outlet of the nozzle; the pressure sensor is arranged on the side wall of the combustion chamber of the rotary gas generator assembly and penetrates into the combustion chamber to measure the pressure change inside the combustion chamber; the speed sensor is arranged next to the flexible coupling to measure the rotation speed of the rotary gas generator when it is working; the signal amplifier amplifies and filters the signals of each sensor and transmits them to the acquisition card, the acquisition card transmits the collected sensor signals to the computer, and the computer displays and records the information parameters of the collected sensor signals in real time; the computer is also connected to the air supply pipeline and the methane supply pipeline, and can control the air flow meter and the methane flow meter by the input speed requirement to adjust the mass flow of fuel and oxidant, thereby stabilizing combustion and improving combustion efficiency, so as to realize closed-loop control of the rotation speed of the rotary gas generator.

[0013] Furthermore, the air compressor can provide an air pressure of 0-8atm and an air flow rate of 0.5kg / s.

[0014] Furthermore, the maximum working pressure of the dynamic and static sealing device is 1 MPa, the maximum flow rate is 1000 L / min, and the maximum rotation speed is 10000 rpm.

[0015] Furthermore, the design pressure of the rotating gas generator assembly is 1 MPa, the rotation speed is 10000 rpm, and the maximum flow rate is 30 g / s.

[0016] Furthermore, the experimental bench is fixed to the ground by anchor bolts, and is blocked by steel plates at the top, bottom, left, right and back to prevent danger.

[0017] Compared with the background technology, the present invention has the following beneficial effects:

[0018] (1) The present invention can simulate the combustion performance of a rotating gas generator at different flow rates and equivalence ratios, provide experimental data support for design and optimization, and break through the limitations of traditional static gas generator experimental systems.

[0019] (2) The present invention effectively solves the difficulties and problems commonly existing in the design and operation of the rotary gas generator experimental system, such as the vibration protection, sealing and combustion stability problems of the rotary system, and the disengagement problem of the igniter after the rotary gas generator is ignited.

[0020] (3) The present invention can collect key parameters such as combustion exhaust temperature, combustion chamber pressure and rotating gas generator speed in real time, and control the gas flow rate through a computer to perform closed-loop control of the rotating gas generator speed, thereby achieving precise control of the combustion process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the rotary gas generator combustion experimental system of the present invention.

[0022] Figure 2 It is an overall system diagram of the rotary gas generator combustion experimental system of the present invention, wherein, 1-air compressor, 2-valve one, 3-methane gas cylinder, 4-air gas cylinder, 5-drying box, 6-valve two, 7-valve three, 8-air flow meter, 9-methane flow meter, 10-premixing box, 11-dynamic and static sealing device, 12-bearing seat one, 13-rotating gas generator assembly, 14-bearing seat two, 15-flexible coupling, 16-bearing seat three, 17-compressor assembly, 18-temperature sensor, 19-pressure sensor, 20-speed sensor, 21-computer, 22-quick-plug ignition nozzle, 23-high-energy igniter, 24-experimental bench.

[0023] Figure 3 It is a schematic diagram of the combustion control method of the rotary gas generator of the present invention. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below based on the accompanying drawings and preferred embodiments, and the purpose and effects of the present invention will become more clear. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] like Figure 1 As shown, the present invention provides a rotary gas generator combustion test system, including a supply system, a rotary gas generator test bench, an ignition system, and a measurement and control system; the rotary gas generator test bench is connected to the supply system, the ignition system, and the measurement and control system respectively;

[0026] Among them, the supply system is used to stably supply fuel and oxidant gas to the gas generator on the rotary gas generator test bench, and can adjust the gas flow through a computer; the ignition system is used to ignite the rotary gas generator, and the measurement and control system is used to collect and record parameters such as temperature, pressure and speed of the rotary gas generator during operation, and can adjust the gas flow and pressure through a computer to achieve closed-loop control of the speed of the rotary gas generator.

[0027] Combine the following Figure 2 The rotary gas generator combustion experimental system is further explained.

[0028] Among them, the supply system includes an air compressor 1, valve one 2, a methane cylinder 3, an air cylinder 4, a drying box 5, valve two 6, valve three 7, an air flow meter 8, a methane flow meter 9 and a premixing box 10.

[0029] Valve 1 2 is set on the pipeline connecting the air compressor 1 and the air cylinder 4, valve 2 6 and air flow meter 8 are set on the air supply pipeline connecting the drying box 5 and the premixing box 10, and valve 3 7 and methane flow meter 9 are set on the methane supply pipeline connecting the methane cylinder 3 and the premixing box 10. Compressed air is stored in the air compressor 1. The air compressor 1 used can provide an air pressure of 0-8atm and an air flow of 0.5kg / s. When the experiment requires, the compressed air generated by the air compressor 1 is transported to the air cylinder 4 through the pipeline, and the air is controlled by valve 1 2 to ensure the safety of the experiment. When valve 2 6 is opened, the air will flow out of the air cylinder 4, dry in the drying box 5, and then flow through valve 2 6 and air flow meter 8 in sequence, and then flow into the premixing box 10 to mix with methane gas. High-pressure gaseous methane is stored in a methane cylinder 3. During the experiment, a pressure reducing valve is used to reduce the pressure. When valve three 7 is opened, gaseous methane will flow out of the methane cylinder 3, flow through valve three 7 and methane flowmeter 9 in sequence, and then enter the premixing box 10 to mix with air. The air flowmeter 8 and the methane flowmeter 9 can monitor the gas mass flow in the pipeline in real time and can adjust the gas mass flow. The two ends on the left side of the premixing box 10 are the inlets for air and methane respectively, and the right end is the outlet for the premixed gas, and the outlet is connected to the dynamic and static sealing device 11 of the rotary gas generator test bench.

[0030] In this embodiment, the specific types of valve 1 2 , valve 2 6 , and valve 3 7 are not limited, and they may be, for example, solenoid valves, pneumatic valves, or electric valves.

[0031] Since the rotating gas generator assembly 13 rotates at high speed when working, and the premixed gas supply pipeline is stationary, a dynamic and static sealing device 11 is required. The rotating gas generator test bench includes a test bench 24, and a dynamic and static sealing device 11, a rotating gas generator assembly 13, a flexible coupling 15, a compressor assembly 17, and a bearing seat 12, a bearing seat 2 14, and a bearing seat 3 16 located at the connection point for fixing and supporting the bearing. One end of the dynamic and static sealing device 11 is connected to the stationary fuel supply pipeline connected to the premixing box 10, and the other end is connected to the shaft of the rotating gas generator assembly 13 through a bearing, and rotates with the combustion chamber. The bearing is fixed to the test bench 24 through the bearing seat 12. The maximum working pressure of the dynamic and static sealing device 11 is 1MPa, the maximum flow rate is 1000L / min, and the maximum rotation speed is 10000rpm.

[0032] The rotary gas generator assembly 13 includes a rotary combustion chamber, a nozzle and a convergent nozzle. The design pressure of the rotary gas generator assembly is 1MPa, the rotation speed is 10000rpm, and the maximum flow rate is 30g / s. The premixed gas of methane and air enters the rotary combustion chamber through the dynamic and static sealing device 11, and is then ignited by the ignition system. The high-temperature and high-pressure gas generated by the combustion flows in the nozzle and is accelerated to be ejected through the convergent nozzle, driving the rotary gas generator to rotate.

[0033] The compressor assembly 17 includes a compressor impeller, a guide plate, a compressor casing, a compressor shaft, etc. The shaft of the compressor assembly 17 is connected to the shaft of the rotating gas generator assembly 13 through a flexible coupling 15, and is fixed to the experimental bench 24 through a bearing seat 2 14 and a bearing seat 3 16.

[0034] Figure 2 The experimental bench 24 in the figure is a simplified schematic diagram. In fact, the experimental bench 24 is made of 80mm*80mm aluminum profiles. Since the rotary gas generator is in a high-speed rotation, high temperature and high pressure working environment during operation, the experimental bench 24 needs to be fixed to the ground through anchor bolts and blocked with 10mm thick steel plates at the top, bottom, left, right and back to prevent danger.

[0035] The ignition system comprises a quick-plug ignition nozzle 22 and a high-energy igniter 23. The quick-plug ignition nozzle 22 is connected to the high-energy igniter 23 through a cable and is connected to the rotary gas generator through a threaded connection.

[0036] exist Figure 2 In the embodiment, the quick-plug ignition nozzle 22 is connected to the combustion chamber side wall of the rotary gas generator assembly 13 by threading and extends into the combustion chamber, so that when the high-energy igniter 23 is started, the electric spark generated by the ignition nozzle 22 can ignite the premixed gas of methane and air in the combustion chamber. In order to disconnect the cable from the quick-plug ignition nozzle 22 after igniting the premixed gas in the rotary gas generator assembly 13, a connection method with a quick plug-in cable and the ignition nozzle body is specially developed. The ignition system has the functions of high-energy ignition and quick disconnection of the cable from the ignition nozzle. When appropriate premixed gas of methane and air is introduced into the combustion chamber, the high-energy igniter 23 is started, and after the gas in the combustion chamber is ignited, the cable is quickly disconnected from the ignition nozzle 22, and then the premixed gas flow is increased. At this time, the rotary gas generator starts to rotate and work under the drive of high-temperature and high-pressure gas.

[0037] The measurement and control system includes a temperature sensor 18 , a pressure sensor 19 , a rotation speed sensor 20 , an acquisition card, a signal amplifier and a computer 21 .

[0038] exist Figure 2In the embodiment, the temperature sensor 18 is arranged at the outlet of one of the nozzles of the rotating gas generator assembly 13, the pressure sensor 19 is arranged on the side wall of the combustion chamber of the rotating gas generator assembly 13 and penetrates into the combustion chamber, and the speed sensor 20 is arranged beside the flexible coupling 15. The temperature sensor 18 is used to measure the temperature at the nozzle outlet of the rotating gas generator assembly 13, the pressure sensor 19 is used to measure the pressure change inside the combustion chamber of the rotating gas generator assembly 13, and the speed sensor 20 is used to measure the rotation speed of the rotating gas generator assembly 13 when it is working. The signal amplifier amplifies and filters the signals of each sensor and transmits them to the acquisition card, which transmits the collected sensor signals to the computer 21. The measurement and control software of the computer 21 displays and records the information parameters of the collected sensor signals in real time; the computer 21 is also connected to the air supply pipeline and the methane supply pipeline, and can control the air flow meter 8 and the methane flow meter 9 through the input speed requirement to adjust the mass flow of the fuel and the oxidant, thereby stabilizing the combustion and improving the combustion efficiency, so as to realize the closed-loop control of the rotation speed of the rotating gas generator 13.

[0039] Combine the following Figure 3 The rotary gas generator combustion control method is further explained.

[0040] like Figure 3 As shown, the high-energy igniter is started, and the premixed gas is successfully ignited inside the combustion chamber of the rotary gas generator assembly 13 using the quick-plug ignition nozzle 22. The rotary gas generator begins to rotate, and the methane flowmeter 9 and the air flowmeter 8 are manually adjusted so that the rotary gas generator can achieve stable combustion and rotation at an appropriate gas flow rate. The temperature sensor 18, the pressure sensor 19, and the speed sensor 20 begin to collect parameter signals when the rotary gas generator is working. The signal amplifier amplifies and filters the signals of each sensor and transmits them to the acquisition card, which transmits the collected sensor signals to the computer. According to the experimental requirements, the speed command is input into the measurement and control software of the computer 21. The deviation between the actual speed and the command speed is used as the input of the controller. The controller outputs the corrected parameter according to the speed deviation. The parameter is used as the input of the measurement and control software of the computer 21. The measurement and control software of the computer 21 adjusts the air and methane flow rates according to the input corrected parameters, and the rotary gas generator is again realized to achieve stable combustion and rotation at an appropriate gas flow rate. Repeat this feedback process until the speed correction is completed, that is, the deviation between the actual speed and the command speed is within a reasonable range that can be set.

[0041] Those skilled in the art can understand that the above are only preferred examples of the invention and are not intended to limit the invention. Although the invention is described in detail with reference to the above examples, those skilled in the art can still modify the technical solutions recorded in the above examples or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, etc. made within the spirit and principle of the invention shall be included in the protection scope of the invention.

Claims

1. A rotary gas generator combustion test system, characterized in that: It includes a rotary gas generator test bench, a supply system, a measurement and control system and an ignition system; the rotary gas generator test bench is connected to the supply system, the ignition system and the measurement and control system respectively; The supply system is used to stably supply fuel and oxidant gas to the gas generator on the rotary gas generator test bench, and can adjust the gas flow rate through a computer; the ignition system is used to ignite the rotary gas generator, and the measurement and control system is used to collect and record the temperature, pressure and speed of the rotary gas generator when it is working, and can adjust the gas flow rate and pressure through a computer to achieve closed-loop control of the speed of the rotary gas generator.

2. The rotary gas generator combustion test system according to claim 1, characterized in that: The supply system includes an air compressor, an air cylinder, a methane cylinder, a drying box, an air flow meter, a methane flow meter, a valve one, a valve two, a valve three and a premixing box; the valve one is arranged on a pipeline connecting the air compressor and the air cylinder, the valve two and the air flow meter are arranged on an air supply pipeline connecting the drying box and the premixing box, and the valve three and the methane flow meter are arranged on a methane supply pipeline connecting the methane cylinder and the premixing box; the compressed air generated by the air compressor is transported to the air cylinder by a pipeline, and the air is switched on and off by the valve one; thereafter, when the valve two is opened, the air will flow out of the air cylinder, be dried in the drying box, and then flow through the valve two and the air flow meter in sequence, and then flow into the premixing box to be mixed with the methane gas; the methane cylinder stores high-pressure gaseous methane, and when the valve three is opened, the gaseous methane flows out of the methane cylinder, flows through the valve three and the methane flow meter in sequence, and enters the premixing box to be mixed with the air.

3. The rotary gas generator combustion experimental system according to claim 2, characterized in that: The rotary gas generator test bench comprises a test bench frame, and a dynamic and static sealing device, a rotary gas generator assembly, a flexible coupling, a compressor assembly, which are fixed on the test bench frame and connected in sequence through three bearings, and a bearing seat 1, a bearing seat 2 and a bearing seat 3 located at the connection position for fixing and supporting the bearings; one end of the dynamic and static sealing device is connected to a stationary fuel supply pipeline connected to the premixing box, and the other end is connected to the shaft of the rotary gas generator assembly through a bearing and rotates with the rotary combustion chamber; the rotary gas generator assembly comprises a rotary combustion chamber, a nozzle and a convergent nozzle, the premixed gas of methane and air enters the rotary combustion chamber through the dynamic and static sealing device, and is then ignited by the ignition system, and the high-temperature and high-pressure gas generated by the combustion flows in the nozzle and is accelerated to be ejected through the convergent nozzle, driving the rotary gas generator to rotate.

4. The rotary gas generator combustion test system according to claim 3, characterized in that: The ignition system includes a quick-plug ignition nozzle and a high-energy igniter. The quick-plug ignition nozzle is connected to the high-energy igniter through a cable and is threadedly connected to the side wall of the combustion chamber of the rotating gas generator assembly. The connection between the ignition nozzle body of the quick-plug ignition nozzle and the ignition cable is a quick plug.

5. The rotary gas generator combustion test system according to claim 4, characterized in that: The measurement and control system includes a temperature sensor, a pressure sensor, a speed sensor, an acquisition card, a signal amplifier and a computer. The temperature sensor is arranged at the outlet of one of the nozzles of the rotary gas generator assembly to measure the temperature at the outlet of the nozzle; the pressure sensor is arranged on the side wall of the combustion chamber of the rotary gas generator assembly and penetrates into the combustion chamber to measure the pressure change inside the combustion chamber; the speed sensor is arranged next to the flexible coupling to measure the rotation speed of the rotary gas generator when it is working; the signal amplifier amplifies and filters the signals of each sensor and transmits them to the acquisition card, the acquisition card transmits the collected sensor signals to the computer, and the computer displays and records the information parameters of the collected sensor signals in real time; the computer is also connected to the air supply pipeline and the methane supply pipeline, and can control the air flow meter and the methane flow meter through the input speed requirement to adjust the mass flow of fuel and oxidant, thereby stabilizing combustion and improving combustion efficiency, so as to realize closed-loop control of the rotation speed of the rotary gas generator.

6. The rotary gas generator combustion test system according to claim 2, characterized in that: The air compressor can provide an air pressure of 0-8atm and an air flow rate of 0.5kg / s.

7. The rotary gas generator combustion test system according to claim 3, characterized in that: The maximum working pressure of the dynamic and static sealing device is 1 MPa, the maximum flow rate is 1000 L / min, and the maximum rotation speed is 10000 rpm.

8. The rotary gas generator combustion test system according to claim 3, characterized in that: The design pressure of the rotating gas generator assembly is 1 MPa, the rotation speed is 10000 rpm, and the maximum flow rate is 30 g / s.

9. The rotary gas generator combustion experimental system according to claim 3, characterized in that: The experimental bench frame is fixed to the ground by anchor bolts, and is blocked by steel plates at the top, bottom, left, right and back to prevent danger.

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