A mobile test system for ground testing of turboshaft engines

Abstract

This utility model relates to a mobile testing system for ground testing of a turboshaft engine, belonging to the field of turboshaft engine technology, and solves the problem of the lack of mobility in existing whole-engine testing technologies. This utility model includes an experimental platform unit, a measurement and control unit, and a water circulation unit; the experimental platform unit, measurement and control unit, and water circulation unit are mounted on a mobile device; the experimental platform unit includes an engine testing platform and a dynamometer; the measurement and control unit includes a measurement and control device and a data acquisition device; the water circulation unit includes a circulating water cooling device, a cold water tank, and a hot water tank. This utility model enables ground testing and rapid transfer of a turboshaft engine.

Description

Technical Field

[0001] This utility model relates to the field of aero-engine technology, and in particular to a mobile test system for ground testing of a turboshaft engine. Background Technology

[0002] The turboshaft engine ground test system is a large-scale comprehensive test equipment that integrates turboshaft engine systems to conduct functional, compatibility, and durability tests.

[0003] Existing turboshaft engine test stands still require hydraulic eddy current dynamometer systems for measuring the shaft power of high-power turboshaft engines. The massive cooling towers and circulating water tanks involved in these systems are fixed infrastructure projects, impacting the overall mobility of containerized test stands. Traditional fixed turboshaft engine test stands cannot be moved to frontline training grounds, island locations, or aircraft carriers to support forward maintenance and performance testing capabilities under the wings.

[0004] Meanwhile, since the highest altitude at which aero engines are used has reached over 8,000 meters above sea level, even the operating range of commonly used turboshaft engines and UAV engines is around 4,000 to 5,000 meters above sea level. Fixed test benches are generally built in low-altitude areas, and once built, they cannot be moved and cannot meet the requirements of higher altitudes to achieve more stringent performance and testing. Therefore, "vacuum" simulation systems are often used, which are expensive and complex. Utility Model Content

[0005] Based on the above analysis, this utility model aims to provide a mobile testing system for ground testing of turboshaft engines, in order to solve the problem that existing containerized turboshaft engine test stands still require the use of hydraulic eddy current dynamometer systems for measuring the shaft power of high-power turboshaft engines. The huge cooling towers and circulating water pools of these systems are fixed infrastructure projects, which affect the overall mobility of the containerized test stands.

[0006] The objective of this utility model is mainly achieved through the following technical solutions:

[0007] A mobile test system for ground testing of a turboshaft engine is characterized by comprising an experimental platform unit, a measurement and control unit, and a water circulation unit.

[0008] The experimental platform unit is used to fix the engine under test; the measurement and control unit and the water circulation unit are both connected to the experimental platform unit; the measurement and control unit is used to measure and control the information of the engine under test; the water circulation unit is used to supply cooling water and recover hot water for cooling the experimental platform unit; the water circulation unit includes a circulating water cooling device, a cold water tank and a hot water tank.

[0009] The experimental platform unit, the measurement and control unit, and the water circulation unit are mounted on a mobile device.

[0010] Furthermore, the experimental platform unit is mounted on a test bench vehicle, the measurement and control unit is mounted on a measurement and control vehicle, and the circulating water cooling device is mounted on a container.

[0011] The test bench, the measurement and control vehicle, the cold water tank, and the hot water tank are all container structures.

[0012] Furthermore, the experimental platform unit includes an engine test platform and a dynamometer; the engine test platform and the dynamometer are located inside the test bench vehicle;

[0013] The engine test platform is used to fix the engine under test; the dynamometer is connected to the engine under test and is used to measure the power information of the engine under test.

[0014] Furthermore, the experimental platform unit also includes auxiliary equipment, which is located on the top of the test bench and includes a starting control mechanism, an electrical load mechanism, and a flywheel lubrication station; the auxiliary equipment is used to provide electrical components, control devices, and lubrication for the test.

[0015] Furthermore, the measurement and control unit includes a measurement and control device and a data acquisition device; the measurement and control device and the data acquisition device are connected to the engine under test and are used to perform measurement and control and information acquisition on the engine under test.

[0016] Furthermore, the measurement and control unit also includes a monitoring station; the monitoring station is located outside the body of the measurement and control vehicle and is used to monitor the information of the experimental platform unit in real time.

[0017] Furthermore, the circulating water cooling device includes a cooling tower, which is used to cool the hot water after the dynamometer has been used.

[0018] Furthermore, the circulating water cooling device also includes a water softener, which is used to reduce the hardness of the water circulating in the test to reduce scaling.

[0019] Furthermore, it also includes a fuel supply vehicle, a generator vehicle, and a refueling vehicle, used to provide fuel, lubricating oil, oil seal oil working medium, and electricity to the engine under test, the experimental platform unit, the measurement and control unit, and the water circulation unit.

[0020] Furthermore, the fuel supply vehicle and the generator vehicle are container structures.

[0021] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0022] (1) In the prior art, the shaft power measurement of high-power turboshaft engines requires the use of a hydraulic eddy current dynamometer system with a large volume and large area, including a huge cooling tower and a circulating water pool. It needs to be fixed on the ground, is not easy to move, and has poor flexibility of use. This utility model replaces the traditional method of storing water underground with the use of a mobile hot and cold water tank, and integrates all test process equipment in a distributed, multi-container test system, thereby improving the convenience, safety and mobility of the device.

[0023] (2) The platform site of this utility model occupies 20m×20m. The test vehicle, control vehicle, fuel supply vehicle and power generation vehicle are all container structures. The circulating water cooling device is set inside the container. The cold water tank and hot water tank are semi-mobile boxes. Compared with the existing high-power turboshaft engine measurement system, it has a small footprint, low cost and high flexibility.

[0024] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0025] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0026] Figure 1 This is one of the structural schematic diagrams of a mobile test system for ground testing of a turboshaft engine, as described in a specific embodiment.

[0027] Figure 2 This is the second schematic diagram of a mobile test system for ground testing of a turboshaft engine, as described in a specific embodiment.

[0028] Figure label:

[0029] 1-Experimental platform unit, 11-Engine test platform, 12-Dynamometer, 2-Measurement and control unit, 3-Water circulation unit, 31-Circulating water cooling device, 311-Cooling tower, 32-Cold water storage tank, 33-Hot water storage tank, 4-Fuel supply vehicle, 5-Engine under test, 6-Bench vehicle, 7-Measurement and control vehicle. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0031] A specific embodiment of this utility model is as follows: Figures 1-2 As shown, a mobile test system for ground testing of a turboshaft engine is disclosed, including an experimental platform unit 1, a measurement and control unit 2, and a water circulation unit 3.

[0032] Experimental platform unit 1 is used to fix the engine under test 5; both measurement and control unit 2 and water circulation unit 3 are connected to experimental platform unit 1; measurement and control unit 2 is used to measure and control the information of the engine under test 5, and water circulation unit 3 is used to supply cooling water and recover hot water for cooling experimental platform unit 1; water circulation unit 3 includes circulating water cooling device 31, cold water tank 32 and hot water tank 33.

[0033] Experimental platform unit 1, measurement and control unit 2, and water circulation unit 3 are mounted on a mobile device.

[0034] Specifically, such as Figure 1 As shown, the test bench 6 is a movable container structure used to install the experimental platform unit 1. Figure 2 As shown, the experimental platform unit 1 includes a dynamometer 12 and an engine test platform 11. The engine test platform 11 is used to mount the turbine engine 5 under test; the dynamometer 12 is connected to the turbine engine 5 under test and is used to measure the power information of the turbine engine 5 under test. In this embodiment, the container dimensions of the test bench 6 are 3m × 3m × 6m.

[0035] Furthermore, the experimental platform unit 1 also includes auxiliary equipment, which is located on the top of the chassis of the test bench 6. This auxiliary equipment includes a starting control mechanism, an electrical load mechanism, and a flywheel lubrication station. During operation, the starting control mechanism, electrical load mechanism, and other drive systems bring the unit into working condition.

[0036] The measurement and control unit 2 is used to measure, control, and monitor the engine under test 5 and the experimental equipment. The measurement and control unit 2 is mounted on the measurement and control vehicle 7. The measurement and control vehicle 7 has a container structure, and the measurement and control unit 2 includes a monitoring console, data acquisition equipment, measurement and control equipment, and a low-voltage electrical cabinet. The monitoring console is located outside the container of the measurement and control vehicle and is used to monitor the information of the experimental platform unit 1 in real time. The data acquisition equipment is used to collect information from the turboshaft engine 5 under test on the engine test platform 11, and to measure and monitor various operating parameters of the engine under test 5 and its accessories. The measurement and control unit 2 is used to display the collected information to the user, and the user can issue control commands based on the information to control the starting, fuel supply, and power supply of the engine under test 5. In this embodiment, the container dimensions of the measurement and control vehicle 7 are 2.4m × 2.5m × 6m.

[0037] The water circulation unit 3 includes a circulating water cooling device 31, a cold water storage tank 32, and a hot water storage tank 33, used for supplying cooling water to the hydraulic dynamometer and recovering and cooling hot water. All equipment, valves, and controllers are housed in one container, while the cold water storage tank 32 and the hot water storage tank 33 are each housed in a central container. The circulating water cooling device 31, located inside the container, includes a cooling tower 311, a water softener, and a water pump.

[0038] This embodiment replaces the traditional method of storing water underground with the use of mobile hot and cold water tanks. It integrates the huge cooling towers, circulating water pools and other equipment that are fixed infrastructure projects in the prior art into mobile cold water tank 32, hot water tank 33 and cooling tower 311 placed in a container, which improves the overall mobility of the experimental system and solves the problem that the traditional fixed turboshaft engine test stand cannot be moved forward to the front-line location to support the forward maintenance and performance testing capabilities under the wings.

[0039] Soft water equipment is used to solve problems such as scaling, corrosion, and blockage caused by hard water in the test of engine 5, thereby improving the safety, stability, and data reliability of the test.

[0040] The cold water in the cold water tank 32 is pumped to the dynamometer 12 on the test bench 6 to supply cold water to the dynamometer 12. The water is filtered and softened by a water softener to prevent scale, corrosion, and blockage caused by hard water during the testing of the engine 5. During operation, the dynamometer 12 heats the cold water, which then drains into the hot water tank 33. The hot water in the hot water tank 33 is pumped into the cooling tower 311. After being cooled by the cooling tower 311, the cold water returns to the cold water tank 32, and the cycle continues.

[0041] In this embodiment, the container of the circulating water cooling device 31 is 2.4m×2.7m×6m, and the dimensions of the cold water storage tank 32 and the hot water storage tank 33 are 2.4m×2.7m×6m.

[0042] Furthermore, it also includes fuel supply vehicle 4, generator vehicle and refueling vehicle.

[0043] The fuel supply vehicle 4 is used to supply working media such as fuel, lubricating oil, and oil sealing oil to the engine under test 5. It is equipped with a fuel supply device, a fuel sealing device, and a lubricating oil purification device. The refueling vehicle is a conventional standardized aviation kerosene transport vehicle, which refuels the fuel supply equipment of the fuel supply vehicle 4 with the aviation fuel required for the operation of the engine under test 5 during the test. In this embodiment, the container of the fuel supply vehicle 4 is 2.4m × 2.7m × 6m.

[0044] The generator truck is used to supply power to the experimental platform unit 1, the measurement and control unit 2, the water circulation unit 3, and the fuel supply truck 4. The generator truck is equipped with a 400kW gas generator set and control devices. In this embodiment, the container of the fuel supply truck 4 is 2.4m × 2.5m × 6m.

[0045] In use, the turboshaft engine 5 under test is installed inside the test bench 6 and connected to the dynamometer 12. The starting control mechanism and electrical load mechanism are activated to bring it into working condition. The control and measurement device on the test and control vehicle 7 controls the starting, fuel supply, and power supply of the turboshaft engine 5 under test, while the data acquisition equipment measures and monitors various operating parameters of the turboshaft engine 5 and its accessories. The water circulation unit 3 supplies cold water to the dynamometer 12 on the test bench 6. The dynamometer 12 heats the cold water, which then returns to the circulating water cooling device 31 of the water circulation unit 3 for cooling via the cooling tower 311 before returning to the cold water tank, thus completing the cycle.

[0046] In existing technologies, shaft power measurement of high-power turboshaft engines requires a large-volume, floor-to-ceiling hydraulic eddy current dynamometer system, including a massive cooling tower and circulating water tank. This system is fixed to the ground, difficult to move, and lacks flexibility. This embodiment replaces the traditional buried water storage method with movable cold water tanks 32 and 33. It integrates the traditional fixed equipment on the test bench for easy movement, achieving integration of all test equipment through a distributed, multi-container test system, improving the convenience, safety, and mobility of the device. In this embodiment, the platform occupies 20m × 20m. The test bench 6, control vehicle 7, fuel supply vehicle 4, and generator vehicle are all container structures. The circulating water cooling device 31 is housed within the container, and the cold water tanks 32 and 33 are semi-mobile containers. Compared to existing measurement systems, this method has a smaller footprint, lower cost, and greater flexibility.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mobile test system for ground testing of a turboshaft engine, characterized in that, It includes an experimental platform unit (1), a measurement and control unit (2), and a water circulation unit (3); The experimental platform unit (1) is used to fix the engine under test (5); the measurement and control unit (2) and the water circulation unit (3) are both connected to the experimental platform unit (1); the measurement and control unit (2) is used to measure and control the information of the engine under test (5); the water circulation unit (3) is used to supply cooling water and recover hot water for the experimental platform unit (1); the water circulation unit (3) includes a circulating water cooling device (31), a cold water tank (32) and a hot water tank (33); The experimental platform unit (1), the measurement and control unit (2), and the water circulation unit (3) are mounted on a mobile device.

2. The mobile test system for ground testing of turboshaft engines as claimed in claim 1, characterized in that, The experimental platform unit (1) is mounted on the test bench (6), the measurement and control unit (2) is mounted on the measurement and control vehicle (7), and the circulating water cooling device (31) is mounted on the container; The test bench (6), the measurement and control vehicle (7), the cold water tank (32), and the hot water tank (33) are all container structures.

3. The mobile test system for ground testing of turboshaft engines as claimed in claim 2, characterized in that, The experimental platform unit (1) includes an engine test platform (11) and a dynamometer (12); the engine test platform (11) and the dynamometer (12) are located inside the test bench (6); The engine test platform (11) is used to fix the engine under test (5); the dynamometer (12) is connected to the engine under test (5) and is used to measure the power information of the engine under test (5).

4. The mobile test system for ground testing of turboshaft engines as defined in claim 3, wherein, The experimental platform unit (1) also includes auxiliary equipment, which is located on the top of the chassis of the test bench (6) and includes a start-up control mechanism, an electrical load mechanism and a flywheel lubrication station; the auxiliary equipment is used to provide electrical components, control devices and lubrication for the test.

5. The mobile test system for the ground testing of turboshaft engines as claimed in claim 2, characterized in that, The measurement and control unit (2) includes a measurement and control device (21) and a data acquisition device (22); the measurement and control device (21) and the data acquisition device (22) are connected to the engine under test (5) and are used to measure and control the engine under test (5) and collect information.

6. The mobile test system for ground testing of turboshaft engines as claimed in claim 5, characterized in that, The measurement and control unit (2) also includes a monitoring station; the monitoring station is located outside the box of the measurement and control vehicle (7) and is used to monitor the information of the experimental platform unit (1) in real time.

7. The mobile test system for the ground testing of turboshaft engines as claimed in claim 3, characterized in that, The circulating water cooling device (31) includes a cooling tower (311) for cooling the hot water after the dynamometer (12) has been used.

8. The mobile test system for ground testing of turboshaft engines as defined in claim 7, wherein, The circulating water cooling device (31) also includes a water softener, which is used to reduce the hardness of the water in the water circulation during the test to reduce scaling.

9. The mobile test system for the ground testing of turboshaft engines as claimed in claim 1, characterized in that, It also includes a fuel supply vehicle (4), a generator vehicle, and a refueling vehicle, which are used to provide fuel, lubricating oil, oil seal oil working medium and electricity to the engine under test (5), the experimental platform unit (1), the measurement and control unit (2) and the water circulation unit (3).

10. The mobile test system for the ground testing of turboshaft engines as claimed in claim 9, characterized in that, The fuel supply vehicle (4) and the generator vehicle are container structures.

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