Disclosure of Invention
In order to solve the problems, the invention provides a simulation test device of an aviation air supercharging device, which can comprehensively test the aviation air supercharging device in a ground environment, simulate working conditions and detect a plurality of key parameters of the air supercharging device, can simplify test scenes and reduce test cost.
The technical scheme is that the simulation test device of the aviation air pressurizing device comprises:
The air pressurizing device is connected with the main path, one end of the air pressurizing device, which is connected with the main path, is connected with the air pressurizing device, the air pressurizing device is connected with the cooling device, and the other end of the air pressurizing device, which is connected with the main path, is respectively connected with the first test branch and the second test branch;
the first test branch is connected with a gas storage device and is used for storing air after being pressurized by the air pressurizing device;
The second test branch is connected with the pressure reducing valve and then connected to the air quality analyzer and used for detecting the quality of the pressurized air produced by the air pressurizing device.
Further, the air inlet end of the air supercharging device is provided with a first temperature sensor for detecting air temperature, the first test branch is provided with a second temperature sensor for detecting air temperature after supercharging, the first test branch is provided with a first pressure sensor, the first test branch is provided with a first flowmeter, and the first test branch is provided with a first safety valve and a first pressure meter.
Further, a filter is arranged on the second test branch and positioned at the front side of the pressure reducing valve, and a second pressure sensor, a second safety valve and a second pressure gauge are arranged on the second test branch.
Further, the air supercharging device is connected with the main path and is connected with one end of the first test branch path and one end of the second test branch path, a first stop valve is further arranged at one end of the air supercharging device, which is connected with the main path and is connected with the first test branch path and the second test branch path, a drain end is further arranged at one end of the air supercharging device, which is connected with the second stop valve, and a third stop valve is arranged on the second test branch path.
Furthermore, a blow-down valve is respectively arranged at the air inlet end and the air outlet end of the air storage device.
Further, the air quality analyzer comprises a dew point sensor, a granularity detection sensor and a residual oil quantity detection sensor, wherein the dew point sensor is used for detecting the humidity state of air generated by the air pressurizing device, the granularity detection sensor is used for detecting the size and the concentration of suspended particles in the air generated by the air pressurizing device, and the residual oil quantity detection sensor is used for detecting residual oil mist in the air generated by the air pressurizing device.
Further, a vibration sensor is further arranged on the motor of the air supercharging device and used for detecting the vibration of the motor of the air supercharging device.
Further, the cooling device comprises a cooling liquid tank, the cooling liquid tank is connected to a cooling liquid inlet of the air pressurizing device through a liquid supply pump and a pipeline, a cooling liquid outlet of the air pressurizing device is connected to an evaporator, the cooling liquid tank is connected to the evaporator after being connected with a first heat exchanger through a pipeline, the first heat exchanger is further provided with a first fan, one port of the evaporator is further connected with a cooling compressor, a second heat exchanger and a liquid storage device through a pipeline, the second heat exchanger is connected with a second fan, the liquid storage device is connected with the other port of the evaporator after being connected with a filter and an expansion valve through a pipeline, a high-pressure end of the cooling compressor is further connected with the other port of the evaporator through a pipeline and a bypass electromagnetic valve, and the expansion valve is further directly connected between the two ports of the evaporator.
Further, a third temperature sensor and a heater are arranged in the cooling liquid tank, a liquid level height detection sensor is further arranged in the cooling liquid tank, a third pressure sensor and a second flowmeter are further arranged on a pipeline of the cooling liquid tank connected with the air supercharging device, and a fourth temperature sensor is arranged on the second heat exchanger.
Further, still include the control unit, the control unit respectively with air supercharging device, gas quality analyzer are connected, the control unit passes through cooling control intermediate relay and connects cooling device, the control unit passes through the valve control intermediate relay and connects the valve in air supercharging device connecting main way and the first test branch road and the second test branch road, the control unit still is connected with air supercharging device connecting main way, first test branch road and second test branch road and the sensor on the cooling device for pressure, temperature, the flow signal that the receiving sensor detected, the cooling liquid tank with be provided with the filter between the air supercharging device.
A simulation test method of an aviation air supercharging device is characterized in that the simulation device of the aviation air supercharging device is adopted to test the aviation air supercharging device.
The simulation test device for the aviation air supercharging device can carry out comprehensive test on the air supercharging device in a ground environment without depending on an actual aircraft, can greatly simplify test scenes, can reduce test cost, can simulate the performance of the air supercharging device under a high-pressure output working condition by arranging a first test branch to be connected with a gas storage device for storing air, can carry out multidimensional detection on the quality of the supercharged air by arranging a second test branch to be connected with a pressure reducing valve and an air quality analyzer, can meet diversified test requirements, is also provided with a temperature sensor, a pressure sensor, a flowmeter and a vibration sensor, can comprehensively detect various key parameters of the aviation air supercharging device, can receive pressure, temperature and flow signals detected by the sensors through centralized management of a control unit, can automatically control the working states of the air supercharging device, the cooling device and various valves, can flexibly adjust the test parameters, and can meet different test requirements, and can realize the test process.
Detailed Description
Referring to fig. 1, a simulation test device for an air pressurizing device for aviation comprises:
The air supercharging device is connected with the main road 1, one end of the air supercharging device, which is connected with the main road, is connected with the air supercharging device 2, the air supercharging device 2 is connected with the cooling device 3, and the other end of the air supercharging device, which is connected with the main road 1, is respectively connected with the first test branch 4 and the second test branch 5;
The first test branch 4 is connected with a gas storage device 6, and is used for storing the air after being pressurized by the air pressurizing device, and the gas storage device 6 can adopt a gas cylinder;
The second test branch 5 is connected to the pressure reducing valve JY and then connected to the air quality analyzer 7, and is used for detecting the quality of the pressurized air produced by the air pressurizing device.
In the embodiment, on the main road where the air supercharging device is connected with the main road 1, the air inlet end of the air supercharging device is provided with a first temperature sensor ST1 for detecting air temperature, the first test branch is provided with a second temperature sensor ST2 for detecting air temperature after supercharging, the first test branch is provided with a first pressure sensor SP1, the first test branch is provided with a first flowmeter FM, and the first test branch is provided with a first safety valve AQ1 and a first pressure gauge B1.
The air pressure boosting device has the advantages that the air inlet end of the air pressure boosting device is provided with the first temperature sensor ST1, the air inlet temperature can be monitored in real time, the influence of different air inlet temperatures on the operation of the air pressure boosting device is helped to be known, the first test branch is provided with the second temperature sensor ST2, the first pressure sensor SP1, the first flowmeter FM1, the first safety valve AQ1 and the first pressure meter B1, the key parameters of the temperature, the pressure and the flow of air after the pressure boosting can be accurately monitored, the first safety valve can automatically release the pressure when the pressure is abnormal, the test safety is guaranteed, the first pressure meter is convenient for operators to intuitively know the pressure value, and the accurate monitoring of the key parameters is helpful for comprehensively evaluating the boosting capacity of the air pressure boosting device.
In the embodiment, a filter GL is disposed on the second test branch 5 and located at 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 disposed on the second test branch.
The second pressure sensor SP2, the second safety valve AQ1 and the second pressure gauge B2 are arranged on the second test branch, the air quality after decompression can be monitored, the detection safety is guaranteed, the filter can remove impurities, the air entering the air quality analyzer is guaranteed to be clean, the detection accuracy is improved, and diversified data acquisition tasks are met.
In the embodiment, one end of the air supercharging device 1, which is connected with the main circuit and is connected with the first test branch circuit 4 and the second test branch circuit 5, is further provided with a first stop valve K1, one end of the air supercharging device, which is connected with the main circuit and is connected with the first test branch circuit 4 and the second test branch circuit 5, is further provided with a drain end at the connection of the second stop valve K2, the air inlet end and the air outlet end of the air storage device 6 are respectively provided with drain valves QF1 and QF2, and the second test branch circuit 5 is provided with a third stop valve K3.
In one embodiment of the present invention, the air quality analyzer includes a dew point sensor ZLD for detecting a humidity state in air generated by the air pressurizing device, a granularity detection sensor ZKL for detecting a size and a concentration of suspended particulate matter in the air generated by the air pressurizing device, and a residual oil amount detection sensor ZCY for detecting oil mist remaining in the air generated by the air pressurizing device.
In the embodiment, the air quality analyzer is provided with a dew point sensor, a granularity detection sensor and a residual oil quantity detection sensor, can respectively detect the humidity state, the size and concentration of suspended particles and residual oil mist in air, can realize comprehensive and fine detection of the quality of the pressurized air, and is beneficial to evaluating the quality of air generated by the aviation air pressurizing device.
In one embodiment of the invention, a vibration sensor is also arranged on the motor of the air supercharging device for detecting the vibration of the motor of the air supercharging device.
In the embodiment, the vibration sensor is arranged on the motor of the air supercharging device, the vibration sensor can accurately monitor the vibration condition of the motor in real time, once the vibration amplitude exceeds the standard range allowed by aviation application, the vibration condition can be fed back, the vibration sensor is helpful for ensuring that the air supercharging device meets the strict vibration requirement of aviation in the test process, a technician can be led to detect the potential vibration problem in advance in the test, the device fault caused by the vibration problem is effectively avoided, and the reliable operation of the air supercharging system when the aircraft flies is ensured.
Referring to fig. 2, in one embodiment of the present invention, the cooling device includes a cooling liquid tank 301, the cooling liquid tank 301 is connected to a cooling liquid inlet of the air booster 2 through a liquid supply pump 302 and a pipeline, a cooling liquid outlet of the air booster 2 is connected to an evaporator 303, the cooling liquid tank 301 is connected to the evaporator 303 through a pipeline after being connected to a first heat exchanger 304, the first heat exchanger 304 is further provided with a first fan 305, one port of the evaporator 303 is further connected to a cooling compressor 306, a second heat exchanger 307 and a liquid storage 308 through pipelines, the second heat exchanger 307 is connected to a second fan 309, the liquid storage 308 is connected to another port of the evaporator 303 through a pipeline after being connected to a filter 310 and an expansion valve 311, a high pressure end of the cooling compressor 306 is further connected to another port of the evaporator 303 through a pipeline and a bypass solenoid valve 312, an expansion valve 308 is further directly connected between the two ports of the evaporator 303, and a filter is provided between the cooling liquid tank 301 and the air booster 2.
In the embodiment, the cooling device takes away the heat generated by the air pressurizing device through circulating the cooling liquid, so that the cooling liquid is kept in a proper working temperature range, the cooling liquid in the cooling liquid tank is conveyed to the air pressurizing device under the action of the liquid supply pump, after the heat generated by the air pressurizing device is absorbed, the cooling liquid enters the evaporator from the air pressurizing device to exchange heat, the high-temperature cooling liquid exchanges heat with the refrigerant in the evaporator, the temperature of the cooling liquid is reduced, meanwhile, the cooling liquid can also dissipate heat in the first heat exchanger, and the cooling liquid returns to the cooling liquid tank after the temperature is reduced, so that circulation is formed.
The second heat exchanger may be in a closed state when the heat generated by operation of the air charging device is at a low level, and the temperature can be effectively controlled by means of only conventional circulation of the cooling liquid between the cooling liquid tank, the first heat exchanger and the evaporator. At the moment, the cooling liquid in the cooling device flows among all the components, takes away the heat generated by the air supercharging device, radiates heat in the first heat exchanger and returns to the cooling liquid tank to complete heat exchange;
When the air supercharging device generates a large amount of heat due to long-time high-load operation, overhigh ambient temperature or other special working conditions, the conventional cooling flow cannot meet the heat dissipation requirement, the cooling compressor can be started to dissipate heat as required, the second heat exchanger and the first heat exchanger work cooperatively, the heat dissipation force of cooling liquid is increased, the cooling compressor compresses the refrigerant flowing out of the evaporator and then conveys the compressed refrigerant to the second heat exchanger, the refrigerant exchanges heat with external air in the second heat exchanger, and a large amount of heat absorbed by the evaporator is dissipated, so that the temperature of the refrigerant is reduced, the cooling effect of the cooling liquid is enhanced, and the air supercharging device can continuously and stably run at a proper temperature.
In the embodiment, a third temperature sensor 318 and a heater 313 are arranged in the cooling liquid tank, a liquid level height detection sensor 314 is also arranged in the cooling liquid tank, a third pressure sensor 315 and a second flowmeter 316 are also arranged on a pipeline of the cooling liquid tank 301 connected with the air supercharging device, and a fourth temperature sensor 317 is arranged on the second heat exchanger.
The third temperature sensor 318 and the heater 313 that set up in the cooling liquid tank can adjust the coolant temperature, can heat or cool off the coolant according to actual temperature condition, just need the heater work when flying in winter alpine region for example, liquid level detection sensor 314 can monitor the coolant liquid level, and third pressure sensor 315 and second flowmeter 316 can monitor the pressure and the flow of coolant liquid, and the fourth temperature sensor on the second heat exchanger can monitor the cooling effect, through each parameter of accurate control cooling system, guarantees that air supercharging device operates under suitable temperature.
In an embodiment of the invention, see fig. 3, the simulation test device of the air pressurizing device for aviation comprises a control unit 8, the control unit 8 can be a PLC, the PLC can be connected with an industrial personal computer through a switch, the air quality analyzer 7 can be connected with the PLC through the switch, in the embodiment, the PLC is connected with a high-voltage motor driver of the air pressurizing device for aviation, the motor of the air pressurizing device for aviation is driven, the control unit is connected with a cooling device through a cooling control intermediate relay 9, the control unit 8 is connected with a valve in the air pressurizing device connecting main circuit, the first test branch circuit and the second test branch circuit through a gas valve, the control unit is also connected with sensors on the air pressurizing device connecting main circuit, the first test branch circuit, the second test branch circuit and the cooling device, and is used for receiving pressure, temperature and flow signals detected by the sensors, fig. 3 is a block diagram of the simulation test device of the air pressurizing device for aviation in the embodiment, and fig. 4 is a block diagram of the simulation test device of the air pressurizing device for aviation in the embodiment, and the connection of the system block diagram of the simulation test device for the air pressurizing device is omitted in fig. 4.
After the simulation test device of the aviation air pressurizing device in the embodiment is started, the control unit drives the aviation air pressurizing device to start to stably operate, the sensor collects key parameters such as pressure, flow, temperature and granularity in the operation process of the air pressurizing device, data are transmitted to the control unit in real time, the control unit analyzes and processes the collected data in real time, and meanwhile, corresponding control instructions are sent to the cooling device and the air storage device according to measurement results, so that stable and reliable performance of the test process is ensured.
Specifically, the second temperature sensor arranged on the first test branch is used for feeding back the temperature data of the air after pressurization to the control unit in real time, the first pressure sensor is used for transmitting the pressure data of the air in the first test branch to the control unit, and the control unit judges whether the pressurization effect of the air pressurization device meets the expectations according to the pressure data. If the pressure is abnormally increased, the control unit can trigger the first safety valve to open for emergency pressure relief, so that the equipment is prevented from being damaged due to the fact that the pressure is too high, the control unit can also adjust the operation parameters of the air supercharging device, such as reducing the supercharging power of the air supercharging device, so as to stabilize the pressure, otherwise, if the pressure is too low, the control unit can also control the air supercharging device to increase the supercharging force, the first flowmeter transmits the flow information of the air in the first test branch to the control unit, and the control unit can monitor and adjust the flow according to a preset flow standard.
The second pressure sensor on the second test branch 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 in a proper range according to the pressure data, and the dew point sensor, the granularity detection sensor and the residual oil quantity detection sensor in the air quality analyzer transmit the detected air quality data to the control unit, so that the quality of the air generated by the air supercharging device can be estimated according to the detection result.
In an embodiment, the control unit may also control the cooling device, where the cooling device monitors the temperature of the cooling liquid in real time, and feeds back the data to the control unit, so that the control unit adjusts the cooling strategy in time according to the actual situation, and after receiving the temperature signal fed back from the third temperature sensor in the cooling liquid tank, the control unit determines whether the current heat dissipation requirement exceeds the conventional cooling capacity. If the current heat dissipation requirement exceeds the conventional cooling capacity, the control unit can send out a command to start the cooling compressor, and the second heat exchanger and the first heat exchanger work cooperatively to increase the heat dissipation force to the cooling liquid.
After the test is finished, the control unit comprehensively and deeply analyzes the collected mass data, and accurately evaluates whether the performance of the air supercharging device meets the design requirement by carefully comparing the collected mass data with the design parameters of the air supercharging device for aviation. According to the test result, the performance of the aviation air pressurizing device is comprehensively and objectively evaluated, and a detailed and reliable data basis is provided for subsequent improvement and optimization.
In the embodiment of the invention, a simulation test method of the air pressurizing device for aviation is also provided, and the simulation device of the air pressurizing device for aviation is adopted to test the air pressurizing device for aviation.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.