Multi-channel medium fluid characteristic simulation system for aero-engine accessory fireproof test

Abstract

This invention relates to a multi-channel media fluid characteristic simulation system for fire protection testing of aero-engine accessories. The invention includes a fuel supply system comprising a fuel tank, a low-pressure fuel supply pump, a low-pressure fuel heat exchanger, and a high-pressure fuel pump connected in sequence. The outlet of the low-pressure fuel heat exchanger is connected to a first fuel inlet. The outlet of the high-pressure fuel pump is connected to a first pressure-flow regulating component and, through the first pressure-flow regulating component, to at least one fuel inlet. The fuel supply system also includes a first water cooler connected to the fuel tank, and the first water cooler is connected to at least one fuel outlet. A lubricating oil supply system comprises a high-temperature lubricating oil tank, a low-pressure lubricating oil supply pump, and a high-pressure lubricating oil supply pump connected in sequence. The outlet of the high-pressure lubricating oil supply pump is connected to a second pressure-flow regulating component. An electronic control system is electrically connected to both the fuel supply system and the lubricating oil supply system. This invention enables automatic control of the multi-channel media fluid characteristics according to test requirements.

Description

Technical Field

[0001] This invention relates to the field of aero-engine technology, and in particular to a multi-channel medium fluid characteristic simulation system for fire protection testing of aero-engine accessories. Background Technology

[0002] According to Section 33.17 "Fire Protection" (e) of the "Airworthiness Regulations for Aircraft Engines," it is clearly required that engine control system components located in designated fire zones must be determined by the Civil Aviation Administration of China to be fire-resistant or fireproof. The engine must contain, isolate, and withstand the hazards of fire, preventing the supply of fuel or air to the fire source, while maintaining the functionality of components under fire conditions to prevent harmful consequences for the engine.

[0003] Fire resistance testing is a high-risk destructive test that simulates the harsh operating conditions of components in the fuel system, lubrication system, and hydraulic oil system of an aircraft engine. Within a specified time, the test specimen is subjected to a standard flame to verify whether it can maintain its safety and structural integrity.

[0004] To ensure a fair and objective assessment of the fire resistance performance of the test specimens, it is necessary to simulate the most demanding fluid characteristics that the specimens might encounter during actual operation, namely minimum flow rate, maximum pressure, and highest temperature. To guarantee the safety of personnel and equipment during the test, the fuel and lubricating oil supply systems must be remotely controlled.

[0005] Fire protection testing of aero-engine accessories is characterized by a wide range of requirements for fuel supply pressure, flow rate, and temperature, numerous fuel supply paths, high control precision, and strong reliability. Faced with the diverse fire protection testing needs of aero-engines with different thrust levels and various accessory types, a single fuel and lubricating oil supply system is insufficient to meet these requirements. Furthermore, it suffers from complex adjustments to the fluid characteristics (temperature, pressure, and flow rate) of the fuel supply medium, a limited number of fuel supply paths, and long pipeline switching cycles. These issues lead to low testing efficiency and substandard test results, significantly impacting the development progress and certification cycle of aero-engines. Summary of the Invention

[0006] To address this, the present invention provides a multi-channel medium fluid characteristic simulation system for fire protection testing of aero-engine components, which can determine the usage mode according to test requirements and realize automatic control of multi-channel medium fluid characteristics.

[0007] To solve the above-mentioned technical problems, the present invention provides a multi-channel medium fluid characteristic simulation system for fire protection testing of aero-engine accessories, comprising: A fuel supply system includes a fuel tank, a low-pressure fuel pump, a low-pressure fuel heat exchanger, and a high-pressure fuel pump connected in sequence. The outlet of the low-pressure fuel heat exchanger is connected to a first fuel inlet. The outlet of the high-pressure fuel pump is connected to a first pressure-flow regulating component and at least one fuel inlet is connected to the first pressure-flow regulating component. The fuel supply system also includes a first water cooler connected to the fuel tank, and the first water cooler is connected to at least one fuel outlet. The lubricating oil supply system includes a high-temperature lubricating oil tank, a low-pressure lubricating oil supply pump, and a high-pressure lubricating oil supply pump connected in sequence. The outlet of the high-pressure lubricating oil supply pump is connected to a second pressure and flow regulating component, which is connected to at least one lubricating oil inlet. The high-temperature lubricating oil tank is connected to at least one lubricating oil outlet. The electronic control system is electrically connected to the fuel supply system and the lubricating oil supply system, respectively.

[0008] In one embodiment of the present invention, the first pressure flow regulating component includes a first fuel pressure regulating valve, a fuel pressure reducing valve, and a second fuel pressure regulating valve that are sequentially connected to the fuel high pressure pump. It also includes a first control valve, a second control valve, a third control valve, a fourth control valve, a first fuel flow regulating valve, and a second fuel flow regulating valve; the fuel inlet includes a second fuel inlet and a third fuel inlet; Wherein, one end of the first control valve is connected to the first fuel inlet, the other end of the first control valve is connected to one end of the second control valve and the outlet of the fuel low-pressure heat exchanger, and the other end of the second control valve is connected to the inlet of the fuel high-pressure pump; the second fuel inlet is connected between the first fuel pressure regulating valve and the fuel pressure reducing valve in sequence through the third control valve and the first fuel flow regulating valve; the third fuel inlet is connected to the second fuel pressure regulating valve in sequence through the fourth control valve and the second fuel flow regulating valve.

[0009] In one embodiment of the present invention, a first flow sensor is connected between the first fuel flow regulating valve and the third control valve, and between the second fuel flow regulating valve and the fourth control valve.

[0010] In one embodiment of the present invention, the fuel supply system further includes a three-way valve and a first adjustable nozzle. The three-way valve is connected to the inlet of the first water cooler, the outlet of the low-pressure fuel supply pump, and the first adjustable nozzle. The fuel outlet includes a first fuel outlet, a second fuel outlet, and a third fuel outlet. One of the first adjustable nozzles is connected to the three-way valve, the first fuel outlet, and the second fuel outlet, respectively, and the other first adjustable nozzle is connected to the three-way valve and the third fuel outlet, respectively.

[0011] In one embodiment of the present invention, the fuel low-pressure heat exchanger is connected to a heat transfer oil temperature control device.

[0012] In one embodiment of the present invention, the second pressure flow regulating component includes a first lubricating oil pressure regulating valve, a lubricating oil pressure reducing valve, and a second lubricating oil pressure regulating valve that are sequentially connected to the lubricating oil high-pressure supply pump. It also includes a fifth control valve, a sixth control valve, a first lubricating oil flow regulating valve, and a second lubricating oil flow regulating valve, wherein the lubricating oil inlet includes lubricating oil inlet one and lubricating oil inlet two; The fifth control valve is connected at one end to the second lubricating oil inlet and at the other end to the inlet of the lubricating oil pressure reducing valve via the first lubricating oil flow regulating valve. The sixth control valve is connected at one end to the first lubricating oil inlet and at the other end to the second lubricating oil pressure regulating valve via the second lubricating oil flow regulating valve.

[0013] In one embodiment of the present invention, a second flow sensor is connected between the first lubricating oil flow regulating valve and the fifth control valve, and between the second lubricating oil flow regulating valve and the sixth control valve.

[0014] In one embodiment of the present invention, the lubricating oil supply system further includes a seventh control valve, an eighth control valve, a ninth control valve, a tenth control valve, and a second water cooler. The outlet of the low-pressure lubricating oil supply pump is connected to the inlet of the second water cooler through the eighth control valve, to the inlet of the high-pressure lubricating oil supply pump through the ninth control valve, and to the high-temperature lubricating oil tank through the tenth control valve. The outlet of the second water cooler is connected to the high-temperature lubricating oil tank. The two ends of the seventh control valve are connected to the inlet of the second water cooler and the high-temperature lubricating oil tank, respectively.

[0015] In one embodiment of the present invention, the lubricating oil outlet includes lubricating oil outlet one and lubricating oil outlet two, and the lubricating oil supply system further includes a second adjustable nozzle, which is connected to the lubricating oil high-temperature tank, lubricating oil outlet one and lubricating oil outlet two respectively.

[0016] In one embodiment of the present invention, the first fuel inlet, the second fuel inlet, the third fuel inlet, the lubricating oil inlet, and the lubricating oil outlet are all connected to pressure sensors and temperature sensors.

[0017] The technical solution of the present invention has the following advantages compared with the prior art: The present invention discloses a multi-channel medium fluid characteristic simulation system for fire protection testing of aero-engine accessories, which enables the use of a single fuel supply scheme to cover the fire protection testing requirements of multiple thrust aero-engines and multiple types of accessories.

[0018] This invention achieves automatic control of the characteristics of multiple media fluids through an electronic control system.

[0019] This invention reduces the workload and requirements for test personnel, ensures the consistency of test data and indicators, and greatly improves efficiency and reduces costs. Attached Figure Description

[0020] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the multi-channel medium fluid characteristic simulation system for fire protection testing of aero-engine components according to the present invention.

[0022] Explanation of reference numerals in the instruction manual: 1. Fuel supply system; 11. Fuel tank; 111. First water cooler; 12. Low-pressure fuel supply pump; 13. Low-pressure fuel heat exchanger; 131. Heat transfer oil temperature control device; 14. High-pressure fuel pump; 15a. First fuel inlet; 15b. Second fuel inlet; 15c. Third fuel inlet; 16a. First fuel pressure regulating valve; 16b. Second fuel pressure regulating valve; 17. Fuel pressure reducing valve; 18a. First control valve; 18b. Second control valve; 18c. Third control valve; 18d. Fourth control valve; 19a. First fuel flow regulating valve; 19b. Second fuel flow regulating valve; 191. First flow sensor; 192. Three-way valve; 193. First adjustable nozzle; 2. Lubricating oil supply system; 21. High-temperature lubricating oil tank; 22. Low-pressure lubricating oil pump; 23. High-pressure lubricating oil pump; 24a. First lubricating oil pressure regulating valve; 24b. Second lubricating oil pressure regulating valve; 25. Lubricating oil pressure reducing valve; 26a. Fifth control valve; 26b. Sixth control valve; 26c. Seventh control valve; 26d. Eighth control valve; 26e. Ninth control valve; 26f. Tenth control valve; 27a. First lubricating oil flow regulating valve; 27b. Second lubricating oil flow regulating valve; 28a. Lubricating oil inlet one; 28b. Lubricating oil inlet two; 28c. Lubricating oil outlet one; 28d. Lubricating oil outlet two; 291. Second flow sensor; 292. Second water cooler; 293. Pressure sensor; 294. Temperature sensor; 295. Second adjustable nozzle; 3. Electrical control system. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0024] In this invention, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this invention, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0025] In this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number; "above," "below," "within," etc., are understood to include the stated number. In the description of this invention, the terms "first" and "second" are used only to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In this invention, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention based on the specific content of the technical solution.

[0027] Reference Figure 1 As shown, the present invention provides a multi-channel medium fluid characteristic simulation system for fire protection testing of aero-engine accessories, comprising: Fuel supply system 1 includes a fuel tank 11, a low-pressure fuel supply pump 12, a low-pressure fuel heat exchanger 13, and a high-pressure fuel pump 14 connected in sequence. The outlet of the low-pressure fuel heat exchanger 13 is connected to a first fuel inlet 15a. The outlet of the high-pressure fuel pump 14 is connected to a first pressure and flow regulating component and at least one fuel inlet 2 is connected through the first pressure and flow regulating component. The fuel supply system 1 also includes a first water cooler 111 connected to the fuel tank 11. The first water cooler 111 is connected to at least one fuel outlet. The lubricating oil supply system 2 includes a high-temperature lubricating oil tank 21, a low-pressure lubricating oil supply pump 22, and a high-pressure lubricating oil supply pump 23 connected in sequence. The outlet of the high-pressure lubricating oil supply pump 23 is connected to a second pressure and flow regulating component. The second pressure and flow regulating component is connected to at least one lubricating oil inlet. The high-temperature lubricating oil tank 21 is connected to at least one lubricating oil outlet. The electronic control system 3 is electrically connected to the fuel supply system 1 and the lubricating oil supply system 2, respectively.

[0028] Specifically, the first pressure flow regulating component includes a first fuel pressure regulating valve 16a, a fuel pressure reducing valve 17, and a second fuel pressure regulating valve 16b, which are sequentially connected to the fuel high pressure pump 14. It also includes a first control valve 18a, a second control valve 18b, a third control valve 18c, a fourth control valve 18d, a first fuel flow regulating valve 19a, and a second fuel flow regulating valve 19b; the second fuel inlet includes a second fuel inlet 15b and a third fuel inlet 15c; Wherein, one end of the first control valve 18a is connected to the first fuel inlet 15a, and the other end of the first control valve 18a is connected to one end of the second control valve 18b and the outlet of the fuel low-pressure heat exchanger 13. The other end of the second control valve 18b is connected to the inlet of the fuel high-pressure pump 14. The second fuel inlet 15b is connected between the first fuel pressure regulating valve 16a and the fuel pressure reducing valve 17 via the third control valve 18c and the first fuel flow regulating valve 19a in sequence. The third fuel inlet 15c is connected to the second fuel pressure regulating valve 16b via the fourth control valve 18d and the second fuel flow regulating valve 19b in sequence.

[0029] Specifically, a first flow sensor 191 is connected between the first fuel flow regulating valve 19a and the third control valve 18c, and between the second fuel flow regulating valve 19b and the fourth control valve 18d.

[0030] Specifically, the fuel supply system 1 further includes a three-way valve 192 and a first adjustable nozzle 193. The three-way valve 192 is connected to the inlet of the first water cooler 111, the outlet of the low-pressure fuel supply pump 12, and the first adjustable nozzle 193, respectively. The fuel outlet includes a first fuel outlet, a second fuel outlet, and a third fuel outlet. One of the first adjustable nozzles 193 is connected to the three-way valve 192, the first fuel outlet, and the second fuel outlet, respectively. The other first adjustable nozzle 193 is connected to the three-way valve 192 and the third fuel outlet, respectively.

[0031] Specifically, the fuel low-pressure heat exchanger 13 is connected to a heat transfer oil temperature control device 131.

[0032] The fuel supply system 1 has three operating modes and can be expanded as required: High-flow-rate, low-pressure fuel inlet mode: Test subjects include fuel supply pumps, fuel servo supply pumps, and low-pressure oil filters. Pressure range: 0.2MPa~0.6MPa; flow rate range: 1000kg / h~6000kg / h; temperature range: 60℃~100℃. Single-inlet fuel mode: The test objects are generally flow accessories, such as high-pressure oil filters, actuators, fuel regulators, fuel coolers, and fuel distributors. The fuel supply pressure range is 0.1MPa~12MPa, the flow rate range is 10kg / h~4000kg / h, and the temperature range is 60℃~150℃. Dual-inlet fuel circuit mode: The test objects are generally flow-through accessories, such as oil filters and booster fuel distributors, which need to supply two fuel streams with different pressures and flow rates simultaneously. The fuel supply parameters are the same as for single-inlet mode, and the pressure of the second fuel supply line is not higher than that of the first fuel supply line.

[0033] In addition, if there are three or more import or export routes required, the import and export quantities can be increased.

[0034] Specifically, the second pressure and flow regulating component includes a first lubricating oil pressure regulating valve 24a, a lubricating oil pressure reducing valve 25, and a second lubricating oil pressure regulating valve 24b, which are sequentially connected to the lubricating oil high-pressure supply pump 23. It also includes a fifth control valve 26a, a sixth control valve 26b, a first lubricating oil flow regulating valve 27a, and a second lubricating oil flow regulating valve 27b, wherein the lubricating oil inlet includes lubricating oil inlet one 28a and lubricating oil inlet two 28b; The fifth control valve 26a is connected at one end to the lubricating oil inlet 28b, and at the other end to the inlet of the lubricating oil pressure reducing valve 25 via the first lubricating oil flow regulating valve 27a. The sixth control valve 26b is connected at one end to the lubricating oil inlet 28a, and at the other end to the second lubricating oil pressure regulating valve 24b via the second lubricating oil flow regulating valve 27b.

[0035] Specifically, a second flow sensor 291 is connected between the first lubricating oil flow regulating valve 27a and the fifth control valve 26a, and between the second lubricating oil flow regulating valve 27b and the sixth control valve 26b.

[0036] Specifically, the lubricating oil supply system 2 further includes a seventh control valve 26c, an eighth control valve 26d, a ninth control valve 26e, a tenth control valve 26f, and a second water cooler 292. The outlet of the low-pressure lubricating oil pump 22 is connected to the inlet of the second water cooler 292 through the eighth control valve 26d, to the inlet of the high-pressure lubricating oil pump 23 through the ninth control valve 26e, and to the high-temperature lubricating oil tank 21 through the tenth control valve 26f. The outlet of the second water cooler 292 is connected to the high-temperature lubricating oil tank 21. The two ends of the seventh control valve 26c are connected to the inlet of the second water cooler 292 and the high-temperature lubricating oil tank 21, respectively.

[0037] Specifically, the lubricating oil outlet includes lubricating oil outlet 28c and lubricating oil outlet 28d. The lubricating oil supply system 2 also includes a second adjustable nozzle 295, which is connected to the lubricating oil high-temperature tank 21, lubricating oil outlet 28c and lubricating oil outlet 28d respectively.

[0038] Specifically, the first fuel inlet 15a, the second fuel inlet 15b, the third fuel inlet 15c, the lubricating oil inlet, and the lubricating oil outlet are all connected to a pressure sensor 293 and a temperature sensor 294.

[0039] The lubricating oil supply system 2 has two operating modes and can be expanded as required: Single-inlet lubricating oil mode: The test objects are generally flow accessories, such as lubricating oil filters, fuel oil radiators, bypass valves, and metal shavings monitors. The oil supply pressure range is 0.2MPa~3MPa, the flow rate range is 1L / min~100L / min, and the temperature range is 60℃~200℃. Dual-inlet lubricating oil mode: The test object is generally a flow accessory, usually an accessory casing, which requires two streams of lubricating oil with different pressures and flow rates to be supplied simultaneously. The oil supply parameters are the same as for single-inlet mode, and the pressure of the second oil supply line should not be higher than that of the first oil supply line.

[0040] If there are three or more import / export routes required, the import / export quantities can be increased.

[0041] In this embodiment, the electronic control system 3 includes a microcontroller that can control the aforementioned valves, such as control valves, pressure regulating valves, flow regulating valves, adjustable nozzle openings, and the opening of the three-way valve 192, to achieve automatic control of multi-channel media fluid characteristics. It can be understood that the electronic control system 3 can sequentially start the oil supply equipment according to the startup logic sequence, and perform pressure, temperature, and flow control, controlling the actions of each actuator to achieve automatic pressure, temperature, and flow control functions. The flow-speed interpolation table of the oil supply pump, the pressure-control signal interpolation table of the pressure regulating valve, and the flow-control signal interpolation table of the flow regulating valve can be input into the program to set the automatic startup flowchart. One-button start is achieved, and based on the collected temperature, pressure, and flow values, the electronic control system 3 performs closed-loop adjustment of the heating power, oil supply pump speed, and control valve control signals.

[0042] Working principle: High flow rate, low pressure mode at the fuel inlet: Test objects include fuel supply pumps, fuel servo supply pumps, and low-pressure oil filters. Pressure range: 0.2MPa~0.6MPa; flow rate range: 1000kg / h~6000kg / h; temperature range: 60℃~100℃. Select the first fuel inlet 15a, close the second control valve 18b, the outlet pressure is atmospheric pressure, select the second fuel outlet, if there is a pressure requirement at the outlet, select either the first fuel outlet or the third fuel outlet.

[0043] Single fuel inlet mode: The test objects are generally flow accessories, such as high-pressure oil filters, actuators, fuel regulators, fuel coolers, and fuel distributors. The fuel supply pressure range is 0.1MPa~12MPa, the flow rate range is 10kg / h~4000kg / h, and the temperature range is 60℃~150℃. Select the second fuel inlet 15b, close the first control valve 18a and the fourth control valve 18d, open the second control valve 18b and the third control valve 18c. The outlet pressure is atmospheric pressure. Select the second fuel outlet. If there is a pressure requirement for the outlet, select either the first or third fuel outlet.

[0044] Dual-inlet fuel circuit mode: The test object is generally a flow-through accessory, such as an oil filter or booster fuel distributor, which needs to supply two fuels with different pressures and flow rates simultaneously. The fuel supply parameters are the same as for single inlet mode, and the pressure of the second fuel supply line should not be higher than that of the first fuel supply line. Select the second fuel inlet 15b and the third fuel inlet 15c, close the first control valve 18a, and open the second control valve 18b, the third control valve 18c / the fourth control valve 18d. The outlet pressure is atmospheric pressure. Select the second fuel outlet. If there is a pressure requirement for the outlet, select either the first or the third fuel outlet.

[0045] Functional expansion: After the second fuel pressure regulating valve 16b, it is urgent to add a fuel pressure reducing valve 17, a flow regulating valve, a pressure regulating valve, etc.

[0046] Single-inlet lubricating oil mode: The test objects are generally flow accessories, such as lubricating oil filters, lubricating oil radiators, bypass valves, and metal shavings monitors. The oil supply pressure range is 0.2MPa~3MPa, the flow rate range is 1L / min~100L / min, and the temperature range is 60℃~200℃. Select lubricating oil inlet 28a, open the fifth control valve 26a, close the sixth control valve 26b, and select lubricating oil outlet 28c if the outlet pressure is required. If there is a pressure requirement at the outlet, select lubricating oil outlet 28d. Dual-inlet lubricating oil mode: The test object is generally a flow accessory, usually an accessory casing, which requires two streams of lubricating oil with different pressures and flow rates to be supplied simultaneously. The oil supply parameters are the same as for single inlet, and the pressure of the second supply line should not be higher than that of the first supply line. Select lubricating oil inlet 1 28a and lubricating oil inlet 28b, open the fifth control valve 26a and the sixth control valve 26b, the outlet pressure is atmospheric pressure, select lubricating oil outlet 1 28c, if there is a pressure requirement for the outlet, select lubricating oil outlet 2 28d; Functional expansion: After the second lubricating oil pressure regulating valve 24b, add a lubricating oil pressure reducing valve, flow regulating valve, pressure regulating valve, etc.

[0047] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A multi-channel medium fluid characteristic simulation system for fire protection testing of aero-engine accessories, characterized in that, include: The fuel supply system (1) includes a fuel tank (11), a low-pressure fuel pump (12), a low-pressure fuel heat exchanger (13), and a high-pressure fuel pump (14) connected in sequence. The outlet of the low-pressure fuel heat exchanger (13) is connected to a first fuel inlet (15a). The outlet of the high-pressure fuel pump (14) is connected to a first pressure and flow regulating component and at least one fuel inlet is connected through the first pressure and flow regulating component. The fuel supply system (1) also includes a first water cooler (111) connected to the fuel tank (11). The first water cooler (111) is connected to at least one fuel outlet. The lubricating oil supply system (2) includes a high-temperature lubricating oil tank (21), a low-pressure lubricating oil supply pump (22), and a high-pressure lubricating oil supply pump (23) connected in sequence. The outlet of the high-pressure lubricating oil supply pump (23) is connected to a second pressure and flow regulating component. The second pressure and flow regulating component is connected to at least one lubricating oil inlet. The high-temperature lubricating oil tank (21) is connected to at least one lubricating oil outlet. The electronic control system (3) is electrically connected to the fuel supply system (1) and the lubricating oil supply system (2), respectively; The first pressure flow regulating assembly includes a first fuel pressure regulating valve (16a), a fuel pressure reducing valve (17), and a second fuel pressure regulating valve (16b) that are sequentially connected to the fuel high pressure pump (14). It also includes a first control valve (18a), a second control valve (18b), a third control valve (18c), a fourth control valve (18d), a first fuel flow regulating valve (19a), and a second fuel flow regulating valve (19b); the second fuel inlet includes a second fuel inlet (15b) and a third fuel inlet (15c); Wherein, one end of the first control valve (18a) is connected to the first fuel inlet (15a), and the other end of the first control valve (18a) is connected to one end of the second control valve (18b) and the outlet of the fuel low-pressure heat exchanger (13). The other end of the second control valve (18b) is connected to the inlet of the fuel high-pressure pump (14). The second fuel inlet (15b) is connected between the first fuel pressure regulating valve (16a) and the fuel pressure reducing valve (17) in sequence through the third control valve (18c) and the first fuel flow regulating valve (19a). The third fuel inlet (15c) is connected to the second fuel pressure regulating valve (16b) in sequence through the fourth control valve (18d) and the second fuel flow regulating valve (19b). The second pressure and flow regulating component includes a first lubricating oil pressure regulating valve (24a), a lubricating oil pressure reducing valve (25), and a second lubricating oil pressure regulating valve (24b) that are sequentially connected to the lubricating oil high-pressure supply pump (23). It also includes a fifth control valve (26a), a sixth control valve (26b), a first lubricating oil flow regulating valve (27a), and a second lubricating oil flow regulating valve (27b), wherein the lubricating oil inlet includes lubricating oil inlet one (28a) and lubricating oil inlet two (28b); The fifth control valve (26a) is connected at one end to the second lubricating oil inlet (28b), and at the other end to the inlet of the lubricating oil pressure reducing valve (25) via the first lubricating oil flow regulating valve (27a). The sixth control valve (26b) is connected at one end to the first lubricating oil inlet (28a), and at the other end to the second lubricating oil pressure regulating valve (24b) via the second lubricating oil flow regulating valve (27b).

2. The multi-channel medium fluid characteristic simulation system for fire protection testing of aero-engine components according to claim 1, characterized in that, A first flow sensor (191) is connected between the first fuel flow regulating valve (19a) and the third control valve (18c), and between the second fuel flow regulating valve (19b) and the fourth control valve (18d).

3. The multi-channel medium fluid characteristic simulation system for fire protection testing of aero-engine components according to claim 1, characterized in that, The fuel supply system (1) further includes a three-way valve (192) and two first adjustable nozzles (193). The three-way valve (192) is connected to the inlet of the first water cooler (111), the outlet of the fuel low-pressure supply pump (12), and the first adjustable nozzles (193), respectively. The fuel outlet includes a first fuel outlet, a second fuel outlet, and a third fuel outlet. One of the first adjustable nozzles (193) is connected to the three-way valve (192), the first fuel outlet, and the second fuel outlet, respectively. The other first adjustable nozzle (193) is connected to the three-way valve (192) and the third fuel outlet, respectively.

4. The multi-channel medium fluid characteristic simulation system for fire protection testing of aero-engine components according to claim 1, characterized in that, The fuel low-pressure heat exchanger (13) is connected to a heat transfer oil temperature control device (131).

5. The multi-channel medium fluid characteristic simulation system for fire protection testing of aero-engine components according to claim 1, characterized in that, A second flow sensor (291) is connected between the first lubricating oil flow regulating valve (27a) and the fifth control valve (26a), and between the second lubricating oil flow regulating valve (27b) and the sixth control valve (26b).

6. The multi-channel medium fluid characteristic simulation system for fire protection testing of aero-engine components according to claim 1, characterized in that, The lubricating oil supply system (2) further includes a seventh control valve (26c), an eighth control valve (26d), a ninth control valve (26e), a tenth control valve (26f), and a second water cooler (292). The outlet of the low-pressure lubricating oil pump (22) is connected to the inlet of the second water cooler (292) through the eighth control valve (26d), to the inlet of the high-pressure lubricating oil pump (23) through the ninth control valve (26e), and to the high-temperature lubricating oil tank (21) through the tenth control valve (26f). The outlet of the second water cooler (292) is connected to the high-temperature lubricating oil tank (21). The two ends of the seventh control valve (26c) are connected to the inlet of the second water cooler (292) and the high-temperature lubricating oil tank (21) respectively.

7. The multi-channel medium fluid characteristic simulation system for fire protection testing of aero-engine components according to claim 1, characterized in that, The lubricating oil outlet includes lubricating oil outlet one (28c) and lubricating oil outlet two (28d). The lubricating oil supply system (2) also includes a second adjustable nozzle (295), which is connected to the lubricating oil high temperature tank (21), lubricating oil outlet one (28c) and lubricating oil outlet two (28d) respectively.

8. The multi-channel medium fluid characteristic simulation system for fire protection testing of aero-engine components according to claim 1, characterized in that, The first fuel inlet (15a), the second fuel inlet (15b), the third fuel inlet (15c), the lubricating oil inlet, and the lubricating oil outlet are all connected to a pressure sensor (293) and a temperature sensor (294).

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