Simulation test device and method for aviation air supercharging device

Abstract

The invention provides a simulation test device for an air supercharging device for aviation, which can comprehensively test the air supercharging device for aviation in a ground environment, simulate a working condition, detect numerous key parameters of the air supercharging device, simplify a test scene and reduce test cost, and comprises an air supercharging device connection main path, one end of the air supercharging device connecting main path is connected with the air supercharging device, the air supercharging device is connected with a cooling device, and the other end of the air supercharging device connecting main path is respectively connected with the first test branch and the second test branch; the first test branch is connected with an air storage device and is used for storing high-pressure air pressurized by the air pressurizing device; and the second test branch is connected to the pressure reducing valve and then connected to the air quality analyzer for detecting the quality of the pressurized air generated by the air pressurizing device.

Description

Technical Field

[0001] The present invention relates to the technical field of testing equipment for aviation air pressurization devices, and particularly relates to a simulation testing device and method for aviation air pressurization devices. Background Art

[0002] As the flight altitude of an aircraft increases, the external atmospheric pressure will decrease significantly. An aviation air pressurization device can provide a comfortable environment for the aircraft cabin, ensure that the pressure of the cabin air meets the requirements, enable passengers to breathe normally during high-altitude flight, and avoid physiological discomfort caused by too low air pressure.

[0003] When manufacturers conduct performance tests on aviation air pressurization devices, it is usually necessary to carry out the tests on the aircraft. Restoring the test scenario is extremely complex, consuming a large amount of manpower and material resources, resulting in high test costs; when testing aviation air pressurization devices, it is necessary to simulate various working conditions and detect numerous key parameters, and the existing technologies are difficult to meet the diverse test requirements of aviation air pressurization devices. Summary of the Invention

[0004] In view of the above problems, the present invention provides a simulation testing device for aviation air pressurization devices, which can comprehensively test aviation air pressurization devices in a ground environment, simulate working conditions and detect numerous key parameters of the air pressurization devices, and can simplify the test scenario and reduce the test cost.

[0005] Its technical solution is as follows: A simulation testing device for aviation air pressurization devices, comprising:

[0006] The main connection path of the air pressurization device, one end of the main connection path of the air pressurization device is connected to the air pressurization device, the air pressurization device is connected with a cooling device, and the other end of the main connection path of the air pressurization device is respectively connected to a first test branch and a second test branch;

[0007] The first test branch is connected with a gas storage device for storing the air pressurized by the air pressurization device;

[0008] The second test branch is connected to an air quality analyzer after passing through a pressure reducing valve, and is used for detecting the quality of the pressurized air output by the air pressurization device.

[0009] Further, a first temperature sensor is arranged at the air inlet end of the air pressurization device for detecting the air temperature, a second temperature sensor is arranged on the first test branch for detecting the temperature of the pressurized air, a first pressure sensor is arranged on the first test branch, a first flow meter is arranged on the first test branch, and a first safety valve and a first pressure gauge are arranged on the first test branch.

[0010] Further, a filter is provided on the second test branch and on the front side of the pressure reducing valve. A second pressure sensor, a second safety valve and a second pressure gauge are provided on the second test branch.

[0011] Further, a first stop valve is provided at one end of the main path connected to the air boosting device and connecting the first test branch and the second test branch. A drain end is provided at one end of the main path connected to the air boosting device and connecting the first test branch and the second test branch and is also connected to a second stop valve. A third stop valve is provided on the second test branch.

[0012] Further, blowdown valves are respectively provided at the air inlet end and the air outlet end of the air storage device.

[0013] Further, the air quality analyzer includes a dew point sensor, a particle size detection sensor, and a residual oil content detection sensor. The dew point sensor is used to detect the humidity state of the air generated by the air boosting device. The particle size detection sensor is used to detect the size and concentration of suspended particulate matter in the air generated by the air boosting device. The residual oil content detection sensor detects the residual oil mist in the air generated by the air boosting device.

[0014] Further, a vibration sensor is also provided on the motor of the air boosting device for detecting the vibration of the motor of the air boosting device.

[0015] Further, the cooling device includes a coolant tank. The coolant tank is connected to the coolant inlet of the air boosting device through a liquid supply pump and a pipeline. The coolant outlet of the air boosting device is connected to an evaporator. The coolant tank is connected to the evaporator after being connected to a first heat exchanger through a pipeline. A first fan is also provided on the first heat exchanger. One port of the evaporator is also connected to a cooling compressor, a second heat exchanger, and a liquid reservoir through a pipeline. A second fan is connected to the second heat exchanger. The liquid reservoir is connected to the evaporator's other port through a pipeline connected to a filter and an expansion valve. The high-pressure end of the cooling compressor is also connected to the evaporator's other port through a pipeline and a bypass solenoid valve. An expansion valve is directly connected between the two ports of the evaporator.

[0016] Further, a third temperature sensor and a heater are provided in the coolant tank. A liquid level height detection sensor is also provided in the coolant tank. A third pressure sensor and a second flow meter are provided on the pipeline connecting the coolant tank to the air boosting device. A fourth temperature sensor is provided on the second heat exchanger.

[0017] Further, it further includes a control unit, the control unit is respectively connected to the air supercharger and the gas quality analyzer, the control unit is connected to the cooling device through a cooling control intermediate relay, the control unit is connected to the valves in the main path, the first test branch and the second test branch of the air supercharger through a gas valve control intermediate relay, the control unit is also connected to the sensors on the main path, the first test branch, the second test branch and the cooling device of the air supercharger, and is used for receiving the pressure, temperature and flow signals detected by the sensors, and a filter is arranged between the coolant tank and the air supercharger.

[0018] A simulation test method for an aviation air supercharger, characterized in that: the simulation device of the aviation air supercharger described above is used to test the aviation air supercharger.

[0019] By using the simulation test device of the aviation air supercharger of the present invention, it is not necessary to rely on an actual aircraft, and the air supercharger can be comprehensively tested in a ground environment, greatly simplifying the test scenario, reducing the test cost. The simulation test device of the aviation air supercharger of the present invention can simulate the performance of the air supercharger under high-pressure output conditions by setting a first test branch to connect to a gas storage device to store air; by setting a second test branch to connect to a pressure reducing valve and a gas quality analyzer, multi-dimensional detection of the quality of the pressurized air can be carried out, including humidity, suspended particulate matter, and residual oil content, meeting diverse test requirements. The simulation test device of the present invention is also equipped with a temperature sensor, a pressure sensor, a flow meter, and a vibration sensor, which can comprehensively detect various key parameters of the aviation air supercharger. In addition, the simulation test device of the present invention can also, through the centralized management of the control unit, receive the pressure, temperature, and flow signals detected by the sensors, and automatically control the working states of the air supercharger, the cooling device, and each valve. The simulation test device can flexibly adjust the test parameters to adapt to different test requirements and can realize the automation of the test process. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of a simulation test device for an aviation air supercharger in an embodiment;

[0021] Figure 2 It is a schematic diagram of the cooling device in an embodiment;

[0022] Figure 3 It is a block diagram of the modules connected to the control unit of the simulation test device for an aviation air supercharger in an embodiment;

[0023] Figure 4 It is a system block diagram of the simulation test device for an aviation air supercharger in an embodiment. Detailed Embodiment

[0024] See Figure 1 , a simulation test device for an aviation air pressurization device, comprising:

[0025] The air pressurization device is connected to the main path 1. One end of the main path connected to the air pressurization device is connected to the air pressurization device 2, and the air pressurization device 2 is connected to the cooling device 3. The other end of the main path connected to the air pressurization device is respectively connected to the first test branch 4 and the second test branch 5;

[0026] The first test branch 4 is connected to a gas storage device 6 for storing the air pressurized by the air pressurization device. The gas storage device 6 can use gas cylinders;

[0027] The second test branch 5 is connected to the air quality analyzer 7 after being connected to the pressure reducing valve JY, for detecting the quality of the pressurized air output by the air pressurization device.

[0028] In the embodiment, on the main path of the main path 1 connected to the air pressurization device, a first temperature sensor ST1 is arranged at the air inlet end of the air pressurization device for detecting the air temperature, a second temperature sensor ST2 is arranged on the first test branch for detecting the temperature of the pressurized air, a first pressure sensor SP1 is arranged on the first test branch, a first flow meter FM is arranged on the first test branch, and a first safety valve AQ1 and a first pressure gauge B1 are arranged on the first test branch.

[0029] Arranging the first temperature sensor ST1 at the air inlet end of the air pressurization device can monitor the inlet air temperature in real time, helping to understand the influence of different inlet air temperatures on the operation of the air pressurization device. Arranging the second temperature sensor ST2, the first pressure sensor SP1, the first flow meter FM1, the first safety valve AQ1 and the first pressure gauge B1 on the first test branch can accurately monitor the key parameters such as the temperature, pressure and flow of the pressurized air. The first safety valve can automatically relieve pressure when the pressure is abnormal, ensuring the safety of the test. The first pressure gauge is convenient for the operator to directly understand the pressure value. Accurately monitoring the key parameters helps to comprehensively evaluate the pressurization ability of the air pressurization device.

[0030] In the embodiment, a filter GL is arranged on the second test branch 5 and on the front side of the pressure reducing valve JY, and a second pressure sensor SP2, a second safety valve AQ1 and a second pressure gauge B2 are arranged on the second test branch.

[0031] Arranging the second pressure sensor SP2, the second safety valve AQ1 and the second pressure gauge B2 on the second test branch can monitor the air quality after decompression, ensuring the safety of the detection. The filter can remove impurities, ensuring the cleanliness of the air entering the air quality analyzer and improving the detection accuracy, meeting diverse data acquisition tasks.

[0032] In the embodiment, a first stop valve K1 is further provided at one end of the main path to which the air supercharging device 1 is connected and which is connected to the first test branch 4 and the second test branch 5. A drain end is further provided with a second stop valve K2 at one end of the main path to which the air supercharging device is connected and which is connected to the first test branch 4 and the second test branch 5. Drain valves QF1 and QF2 are respectively provided at the inlet end and the outlet end of the gas storage device 6. A third stop valve K3 is provided on the second test branch 5.

[0033] In an embodiment of the present invention, the air quality analyzer includes a dew point sensor ZLD, a particle size detection sensor ZKL, and a residual oil amount detection sensor ZCY. The dew point sensor ZLD is used to detect the humidity state of the air generated by the air supercharging device. The particle size detection sensor ZKL is used to detect the size and concentration of suspended particulate matter in the air generated by the air supercharging device. The residual oil amount detection sensor ZCY detects the residual oil mist in the air generated by the air supercharging device.

[0034] In the embodiment, the air quality analyzer is equipped with a dew point sensor, a particle size detection sensor, and a residual oil amount detection sensor, which can respectively detect the humidity state, the size and concentration of suspended particulate matter, and the residual oil mist in the air, and can realize comprehensive and detailed detection of the supercharged air quality, which helps to evaluate the air quality generated by the air supercharging device for aviation.

[0035] In an embodiment of the present invention, a vibration sensor is further provided on the motor of the air supercharging device for detecting the vibration of the motor of the air supercharging device.

[0036] In the embodiment, a vibration sensor is provided on the motor of the air supercharging device. The vibration sensor can accurately monitor the vibration of the motor in real time. Once the vibration amplitude exceeds the standard range allowed for aviation applications, it can feedback the vibration situation. The vibration sensor helps to ensure that the air supercharging device meets the strict vibration requirements of aviation during the test, and can also enable technicians to detect potential vibration problems in advance during the test, effectively avoiding device failures caused by vibration problems and ensuring the reliable operation of the air supercharging system during aircraft flight.

[0037] See Figure 2, in an embodiment of the present invention, the cooling device includes a coolant tank 301. The coolant tank 301 is connected to the coolant inlet of the air supercharger 2 through a liquid supply pump 302 and a pipeline. The coolant outlet of the air supercharger 2 is connected to the evaporator 303. The coolant tank 301 is connected to the evaporator 303 after being connected to the first heat exchanger 304 through a pipeline. The first heat exchanger 304 is also provided with a first fan 305. One port of the evaporator 303 is also connected to a cooling compressor 306, a second heat exchanger 307, and a liquid receiver 308 through a pipeline. The second heat exchanger 307 is connected with a second fan 309. The liquid receiver 308 is connected to the other port of the evaporator 303 after being connected to a filter 310 and an expansion valve 311 through a pipeline. The high-pressure end of the cooling compressor 306 is also connected to the other port of the evaporator 303 through a pipeline and a bypass solenoid valve 312. An expansion valve 308 is directly connected between the two ports of the evaporator 303. A filter is provided between the coolant tank 301 and the air supercharger 2.

[0038] In the embodiment, the cooling device takes away the heat generated by the air supercharger by circulating the coolant, so that it is maintained within a suitable operating temperature range. Under the action of the liquid supply pump, the coolant in the coolant tank is transported to the air supercharger. After absorbing the heat generated by the air supercharger, it enters the evaporator from the air supercharger for heat exchange. The high-temperature coolant exchanges heat with the refrigerant in the evaporator, reducing the temperature of the coolant. At the same time, the coolant can also dissipate heat in the first heat exchanger and then return to the coolant tank after the temperature is reduced, forming a cycle.

[0039] When the heat generated during the operation of the air supercharger is at a relatively low level and the temperature can be effectively controlled only by the conventional circulation of the coolant between the coolant tank, the first heat exchanger, and the evaporator, the second heat exchanger can be in a closed state. At this time, the coolant in the cooling device flows among the components, takes away the heat generated by the air supercharger, and dissipates heat in the first heat exchanger and then returns to the coolant tank to complete the heat exchange;

[0040] When the air supercharger generates a large amount of heat due to long-term high-load operation, too high environmental temperature, or other special working conditions, making the conventional cooling process unable to meet the heat dissipation requirements, the cooling compressor can be started as needed for heat dissipation. The second heat exchanger and the first heat exchanger work together to increase the heat dissipation intensity of the coolant. The cooling compressor compresses the refrigerant flowing out of the evaporator and transports it to the second heat exchanger. In the second heat exchanger, the refrigerant exchanges heat with the outside air, dissipating a large amount of heat absorbed from the evaporator, reducing the temperature of the refrigerant, enhancing the cooling effect on the coolant, and ensuring that the air supercharger can operate continuously and stably at a suitable temperature.

[0041] In the embodiment, a third temperature sensor 318 and a heater 313 are arranged in the coolant tank. A liquid level detection sensor 314 is also arranged in the coolant tank. A third pressure sensor 315 and a second flowmeter 316 are further arranged on the pipeline connecting the coolant tank 301 to the air supercharging device. A fourth temperature sensor 317 is arranged on the second heat exchanger.

[0042] The third temperature sensor 318 and the heater 313 arranged in the coolant tank can adjust the coolant temperature, heating or cooling the coolant according to the actual temperature. For example, the heater needs to work when flying in high-cold regions in winter. The liquid level detection sensor 314 can monitor the coolant level. The third pressure sensor 315 and the second flowmeter 316 can monitor the pressure and flow of the coolant. The fourth temperature sensor on the second heat exchanger can monitor the cooling effect. By precisely controlling the parameters of the cooling system, it is ensured that the air supercharging device operates at an appropriate temperature.

[0043] See Figure 3 In an embodiment of the present invention, the simulation test device for an aviation air supercharging device further includes a control unit 8. The control unit 8 can adopt a PLC. The PLC can be connected to an industrial control computer through a switch. The air quality analyzer 7 can be connected to the PLC through a switch. In the embodiment, the PLC is connected to the high-voltage motor driver of the aviation air supercharging device to drive the motor of the aviation air supercharging device. The control unit is connected to the cooling device through a cooling control intermediate relay 9. The control unit 8 is connected to the valves in the main path, the first test branch, and the second test branch of the air supercharging device through a gas valve control intermediate relay 10. The control unit is also connected to the sensors on the main path, the first test branch, the second test branch, and the cooling device of the air supercharging device for receiving the pressure, temperature, and flow signals detected by the sensors. Figure 3 It is a block diagram of the modules connected to the control unit of the simulation test device for the aviation air supercharging device in the embodiment; Figure 4 It is a system block diagram of the simulation test device for the aviation air supercharging device in the embodiment. Figure 4 The pipelines connecting the system modules are omitted in the figure.

[0044] After starting the simulation test device for the aviation air supercharging device in the embodiment, the control unit drives the aviation air supercharging device to start stable operation. The sensors collect key parameters such as pressure, flow, temperature, and particle size during the operation of the air supercharging device and transmit the data to the control unit in real time. The control unit analyzes and processes the collected data in real time. At the same time, according to the measurement results, corresponding control instructions are sent to the cooling device and the gas storage device to ensure the stable and reliable progress of the test process.

[0045] Specifically, the second temperature sensor provided on the first test branch road feeds back the temperature data of the pressurized air to the control unit in real time. The first pressure sensor is responsible for transmitting the pressure data of the air in the first test branch road to the control unit. The control unit determines whether the pressurization effect of the air pressurization device meets the expectation based on the pressure data. If the pressure rises abnormally, the control unit can trigger the opening of the first safety valve to perform emergency pressure relief and prevent damage to the equipment caused by excessive pressure. The control unit can also adjust the operating parameters of the air pressurization device, such as reducing its pressurization power, to stabilize the pressure. On the contrary, if the pressure is too low, the control unit can also control the air pressurization device to increase the pressurization intensity. The first flowmeter transmits the flow information of the air in the first test branch road to the control unit, and the control unit can monitor and adjust the flow according to the preset flow standard.

[0046] The second pressure sensor on the second test branch road can feed back the pressure condition of the depressurized air to the control unit. The control unit ensures that the air pressure entering the air quality analyzer is within a suitable range based on the pressure data. The dew point sensor, particle size detection sensor, and residual oil detection sensor in the air quality analyzer transmit the detected air quality data to the control unit, and the quality of the air generated by the air pressurization device can be evaluated according to the detection results.

[0047] In the embodiment, the control unit can also control the cooling device. The cooling device monitors the temperature of the coolant in real time and feeds back the data to the control unit, so that the control unit can adjust the cooling strategy in a timely manner according to the actual situation. After receiving the temperature signal fed back by the third temperature sensor in the coolant tank, the control unit determines whether the current heat dissipation requirement has exceeded the conventional cooling capacity. If the current heat dissipation requirement has exceeded the conventional cooling capacity, the control unit can issue an instruction to start the cooling compressor, and the second heat exchanger and the first heat exchanger work together to increase the heat dissipation intensity of the coolant.

[0048] After the test is completed, the control unit conducts a comprehensive and in-depth comprehensive analysis of the massive data collected. By carefully comparing with the design parameters of the aviation air pressurization device, it accurately evaluates whether its performance meets the design requirements, including: accurately judging whether the pressurization effect of the air pressurization device reaches the design standard by analyzing the pressure data; evaluating its flow stability and fluctuation by analyzing the flow data. According to the test results, a comprehensive and objective evaluation of the performance of the aviation air pressurization device is carried out, providing detailed and reliable data basis for subsequent improvement and optimization.

[0049] In the embodiment of the present invention, a simulation test method for an aviation air pressurization device is also provided, and the above-mentioned simulation device for an aviation air pressurization device is used to test the aviation air pressurization device.

[0050] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention.

[0051] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A simulation test device for an air pressurization device used in aviation, characterized in that: Including: The air pressurizing device is connected to the main path. One end of the connection between the air pressurizing device and the main path is connected to the air pressurizing device, and the air pressurizing device is connected to a cooling device. The other end of the connection between the air pressurizing device and the main path is respectively connected to a first test branch and a second test branch; The first test branch is connected to a gas storage device for storing the air pressurized by the air pressurizing device; The second test branch is connected to an air quality analyzer after passing through a pressure reducing valve, and is used for detecting the quality of the pressurized air output by the air pressurizing device.

2. The simulation test device of an aviation air pressurization device according to claim 1, characterized in that: A first temperature sensor is provided at the air inlet end of the air pressurizing device for detecting the air temperature. A second temperature sensor is provided on the first test branch for detecting the temperature of the pressurized air. A first pressure sensor, a first flow meter, a first safety valve and a first pressure gauge are provided on the first test branch.

3. The simulation test device of an air pressurization device for aviation according to claim 2, characterized in that: A filter is provided on the second test branch and on the front side of the pressure reducing valve. A second pressure sensor, a second safety valve and a second pressure gauge are provided on the second test branch.

4. The simulation test device of an aviation air supercharging device according to claim 1, characterized in that: A first stop valve is further provided at one end of the connection between the main path connected to the air pressurizing device and the first test branch and the second test branch. A drain end is further provided at one end of the connection between the main path connected to the air pressurizing device and the first test branch and the second test branch where a second stop valve is connected. A third stop valve is provided on the second test branch. Drain valves are respectively provided at the air inlet end and the air outlet end of the gas storage device.

5. The simulation test device of an aviation air pressurization device according to claim 1, characterized in that: The air quality analyzer includes a dew point sensor, a particle size detection sensor, and a residual oil content detection sensor. The dew point sensor is used for detecting the humidity state of the air generated by the air pressurizing device. The particle size detection sensor is used for detecting the size and concentration of suspended particulate matter in the air generated by the air pressurizing device. The residual oil content detection sensor detects the residual oil mist in the air generated by the air pressurizing device.

6. The simulation test device of an air pressurization device for aviation according to claim 1, characterized in that: A vibration sensor is further provided on the motor of the air pressurizing device for detecting the vibration of the motor of the air pressurizing device.

7. The simulation test device of an aviation air pressurization device according to claim 1, characterized in that: The cooling device includes a coolant tank. The coolant tank is connected to the coolant inlet of the air pressurizing device through a liquid supply pump and a pipeline. The coolant outlet of the air pressurizing device is connected to an evaporator. The coolant tank is connected to the evaporator after being connected to a first heat exchanger through a pipeline. A first fan is further provided on the first heat exchanger. One port of the evaporator is further connected to a cooling compressor, a second heat exchanger, and a liquid reservoir through a pipeline. A second fan is connected to the second heat exchanger. The liquid reservoir is connected to the other port of the evaporator through a pipeline connected to a filter and an expansion valve. The high-pressure end of the cooling compressor is further connected to the other port of the evaporator through a pipeline and a bypass solenoid valve. An expansion valve is directly connected between the two ports of the evaporator.

8. The simulation test device of an aviation air pressurization device according to claim 7, characterized in that: A third temperature sensor and a heater are provided inside the coolant tank. A liquid level detection sensor is also provided inside the coolant tank. A third pressure sensor and a second flowmeter are further provided on the pipeline connecting the coolant tank to the air boosting device. A fourth temperature sensor is provided on the second heat exchanger. A filter is provided between the coolant tank and the air boosting device.

9. The simulation test device for an aviation air supercharging device according to claim 1, characterized in that: It further includes a control unit. The control unit is respectively connected to the air boosting device and the gas quality analyzer. The control unit is connected to the cooling device through a cooling control intermediate relay. The control unit is connected to the valves in the main path, the first test branch, and the second test branch of the air boosting device through a gas valve control intermediate relay. The control unit is also connected to the sensors on the main path, the first test branch, the second test branch, and the cooling device of the air boosting device for receiving the pressure, temperature, and flow signals detected by the sensors.

10. A simulation test method for an air pressurization device for aviation, characterized in that: The aviation air boosting device is tested by using the simulation device of the aviation air boosting device according to any one of claims 1 to 9.

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