Aerodynamic valve small flow comprehensive test bench

Abstract

The utility model discloses a kind of aviation pneumatic valve small flow comprehensive test benches, comprising: first test unit and second test unit, it is located on test bench;First test unit includes: general control module, it is located on test bench, it is used to control test bench;Single pressure measurement module, it is located on test bench, it is at least two, and the data of each pressure measurement is not equal;Second test unit includes: precision pressure measurement module, it is located on test bench, it is at least two, it is used to detect different requirements detection piece and detect.The aviation pneumatic valve small flow comprehensive test bench, by setting the multiple groups of single pressure measurement module of first test unit, flow velocity module and the precision pressure measurement module of second test unit, water column pressure module, and cooperate the collaborative control of general control module and control module, not only can compatible multiple models of aviation pneumatic valve, but also can realize comprehensive test to valve flow, multiple precision pressure, leakage and function on the same platform.

Description

Technical Field

[0001] This utility model relates to the field of aviation pneumatic door testing technology, specifically to a small-flow comprehensive test bench for aviation pneumatic valves. Background Technology

[0002] Aircraft pneumatic valves are key components of fluid control in aviation systems, and their leakage performance and functional reliability under low-flow conditions directly affect the operational safety of aviation equipment. However, existing low-flow valve test benches generally suffer from poor compatibility and limited testing dimensions: on the one hand, most test benches are designed only for valves of specific part numbers and cannot be adapted to the testing of valves with different specifications and performance requirements; on the other hand, existing equipment often can only test flow rate or pressure performance, lacking the comprehensive testing capabilities for multiple dimensions of performance such as "leakage requiring fine water column pressure testing, high-precision pressure, and multiple flow ranges." This forces aviation companies to equip multiple test devices for different valves, which not only increases testing costs but also reduces testing efficiency due to repeated valve disassembly and assembly, making it difficult to meet the efficient and comprehensive quality testing requirements of aircraft pneumatic valves.

[0003] To address the aforementioned issues, there is an urgent need for a low-flow-rate test bench that is compatible with multiple part numbers and offers comprehensive testing capabilities for various performance characteristics. This bench should be able to perform multi-dimensional tests on valves of different part numbers, including flow rate, pressure, leakage, and functionality, on the same platform. By integrating modules such as single-bar pressure measurement, precision pressure measurement, and water column pressure detection, it can achieve accurate testing of parts with different testing requirements. This will improve the testing efficiency and quality assurance level of aerospace pneumatic valves, providing reliable support for the safe operation of aerospace equipment. Utility Model Content

[0004] The purpose of this invention is to provide a small-flow integrated test bench for aerodynamic valves to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a small-flow integrated test bench for aerodynamic valves, comprising:

[0006] The first and second test units are both located on the test bench;

[0007] The first test unit includes:

[0008] A central control module, located on the test bench, is used to control the test bench;

[0009] A single pressure measurement module is installed on the test bench, and there are at least two modules, with each module measuring different pressure data.

[0010] The second test unit includes:

[0011] A precision pressure measurement module, which is located on the test bench, and there are at least two of them, which are used to test test pieces with different requirements;

[0012] A water column pressure module, which is installed on the test bench, and there are at least two of them, which are used to perform water column pressure testing on test pieces with different requirements;

[0013] A control module, located on the test bench, is used to perform overall control of the precision pressure measuring module and the water column pressure module.

[0014] Preferably, the master control module includes:

[0015] A total pressure gauge, which is installed on the test bench, is used to display the pressure data of the first test unit;

[0016] A thermometer, which is mounted on the test bench, is used to measure the temperature of the first test unit;

[0017] The first emergency stop button is located on the test bench and is used to prevent the first test unit from pausing when it is not working.

[0018] A switch button is located on the test bench and is used to control the start of the first test unit;

[0019] The test bench is equipped with a motor, which is electrically connected to the switch button, and the switch button controls the motor.

[0020] Preferably, the single pressure measurement module includes:

[0021] An output connector, located on the test bench, is used to connect to the test piece;

[0022] The first voltage regulating knob is located on the test bench and is connected to the output interface. It is used to control the output of the output interface.

[0023] The first sub-switch knob is located on the test bench and is connected to the output interface. It is used to control whether the output interface is turned on.

[0024] The first sub-pressure gauge, which is located on the test bench, is used to display the pressure in the detection element connected to the output interface;

[0025] The test bench is equipped with an air pump, which applies pressure to the test piece through the output interface.

[0026] Preferably, the first experimental unit further includes a first flow rate meter and a second flow rate meter, which are mounted on the test bench and connected to the air pump to display the flow rate of the air pump.

[0027] Preferably, the precision pressure measurement module includes:

[0028] A first connector is provided on the test bench and is used to connect a test piece.

[0029] A precision pressure gauge is mounted on the test bench and connected to the first connector. It is used to display the internal pressure of the sensor connected to the first connector.

[0030] Preferably, the inner side of the test bench is provided with a water pump serving the second test unit. The water pump is connected to the precision pressure gauge and the first connector and is used to pump air pressure to measure the pressure of the test piece.

[0031] Preferably, the water column pressure module includes:

[0032] A second connector located on the test bench is used to connect the test piece;

[0033] A water column pressure gauge is installed on the test bench and connected to the second connector, which is used to display the water pressure of the test piece connected to the second connector;

[0034] A water pump is connected to the second connector and the water column pressure gauge, and the water pump is located inside the test bench.

[0035] Preferably, the control module includes:

[0036] An input interface is provided on the test bench, which is used to connect an external connecting pipe;

[0037] A high-voltage output button located on the test bench is used to control the input interface;

[0038] The input interface is connected to the water pump and is used to supply gas to the water pump;

[0039] A second pressure regulating knob located on the test bench is used to control the water pump;

[0040] The second sub-switch knob, located on the test bench, is used to control the water pump to start or stop.

[0041] A second sub-pressure gauge is installed on the test bench, which is used to display the output pressure of the water pump;

[0042] A second emergency stop button is provided on the test bench, which is used to control the second test unit.

[0043] Compared with existing technologies, the beneficial effects of this utility model are as follows: This comprehensive test bench for small flow rates of aero-pneumatic valves, by setting up multiple sets of single-bar pressure measurement modules and flow velocity modules in the first test unit and precision pressure measurement modules and water column pressure modules in the second test unit, and coordinating with the overall control module and the control module, can not only be compatible with various types of aero-pneumatic valves, but also realize comprehensive testing of valve flow rate, multi-precision pressure, leakage (water column pressure detection) and functions on the same platform. It effectively solves the problems of poor compatibility and single testing dimensions of existing equipment, improves testing efficiency, reduces equipment investment costs, and comprehensively ensures the quality testing accuracy of aero-pneumatic valves, providing reliable support for the safe operation of aviation systems. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of this utility model.

[0045] In the diagram: 1. Main pressure gauge; 2. Temperature gauge; 3. First emergency stop button; 4. Switch button; 5. Output connector; 6. First pressure regulating knob; 7. First sub-switch knob; 8. First sub-pressure gauge; 9. First flow rate gauge; 10. Second flow rate gauge; 11. Precision pressure gauge; 12. First connector; 13. Second connector; 14. Water column pressure gauge; 15. Second emergency stop button; 16. Second sub-pressure gauge; 17. Second sub-switch knob; 18. Second pressure regulating knob; 19. High pressure output button; 20. Input connector. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] Please see Figure 1 This utility model provides a technical solution: a small-flow integrated test bench for aero-aerodynamic valves, comprising:

[0048] The first test unit and the second test unit are both set on the test bench. The first test unit is used to perform air pressure testing on different types of test pieces, and the second test unit is used to perform water pressure testing on different types of test pieces, thereby enabling the sealing testing of different types of test pieces.

[0049] The first experimental unit includes:

[0050] The main control module, located on the test bench, controls the test bench and includes: a main pressure gauge 1, which monitors the pressure value of the air pump in the first test unit, displaying a value of 0-600 psi; a temperature gauge 2, which detects the internal temperature of the test bench to ensure the service life of the air pump; a first emergency stop button 3, located on the test bench to prevent accidental interruption of the first test unit's operation; and a switch button 4, located on the test bench to control the start of the first test unit. The test bench contains a motor electrically connected to switch button 4, which controls the motor. The motor is also electrically connected to the air pump, driving the air pump. By controlling the motor via switch button 4, the first test unit is started and begins operation to test the test piece.

[0051] A single pressure testing module, located on the test bench, consists of at least two modules, but actually four. Each module releases a different pressure value: 0-50 psi, 0-100 psi, and 0-200 psi, with unequal data for each module. Each module includes: an output connector 5, located on the test bench, for connecting to the test piece; a first pressure regulating knob 6, located on the test bench, connected to the output connector 5, for controlling the output of the output connector 5; a first sub-switch knob 7, located on the test bench, connected to the output connector 5, for controlling whether the output connector 5 is open; a first sub-pressure gauge 8, located on the test bench, for displaying the pressure inside the test piece connected to the output connector 5; and an air pump on the test bench, which applies pressure to the test piece through the output connector 5.

[0052] The first experimental unit also includes a first flow rate meter 9 and a second flow rate meter 10. The first flow rate meter 9 and the second flow rate meter 10 are set on the test bench and connected to the air pump to display the flow rate of the air pump.

[0053] The first test unit starts the motor via switch button 4 to drive the air pump. Total pressure gauge 1 displays the total air pump pressure from 0-600psi, and temperature gauge 2 monitors the internal temperature to ensure the lifespan of the air pump. Subsequently, four single pressure measuring modules with different pressure ranges (0-50psi, 0-100psi, 0-200psi, etc.) are activated via the first sub-switch knob 7. After the pressure is adjusted by the first pressure regulating knob 6, air is supplied to the test piece through the output connector 5. The first sub-pressure gauge 8 displays the internal pressure of the test piece, and the first flow rate gauge 9 and the second flow rate gauge 10 monitor the air pump flow rate in real time. This enables multi-range air pressure testing of different types of test pieces. In case of abnormality, the first emergency stop button 3 can urgently stop the equipment to ensure safety.

[0054] The second experimental unit includes:

[0055] A precision pressure measuring module is installed on the test bench. There are at least two, but actually three. The three precision pressure measuring modules output values ​​of 0-100, 0-200, and 0-600, respectively, which are used to test test pieces with different requirements. The precision pressure measuring module includes: a first connector 12, which is installed on the test bench and is used to connect the test piece; a precision pressure gauge 11, which is installed on the test bench and is connected to the first connector 12, and is used to display the internal pressure of the test piece connected to the first connector 12; a water pump serving the second test unit is provided on the inner side of the test bench. The water pump is connected to the precision pressure gauge 11 and the first connector 12 and is used to pump air to measure the pressure of the test piece.

[0056] An important component of the second test unit, it has three pressure output ranges corresponding to 0-100, 0-200, and 0-600 respectively to adapt to different testing requirements. During operation, the test piece is first plugged into the first connector 12, and then the water pump inside the test bench serving the second test unit is started. The water pump forms a connected loop with the precision pressure gauge 11 and the first connector 12 through the pipeline and pumps air into the test piece. The precision pressure gauge 11 displays the internal pressure of the test piece connected to the first connector 12 in real time. By selecting the precision pressure measurement module with different ranges, accurate pressure measurement of test pieces with different pressure testing requirements can be achieved.

[0057] A water column pressure module, located on the test bench, consists of at least two, but actually three, releasing pressure values ​​of 0-50 inHg, 0-100 inHg, and 0-150 inHg respectively. It is used to perform water column pressure testing on test pieces with different requirements. The water column pressure module includes: a second connector 13 located on the test bench for connecting the test piece; a water column pressure gauge 14 located on the test bench and connected to the second connector 13 for displaying the water pressure of the test piece connected to the second connector 13; and a water pump connected to the second connector 13 and the water column pressure gauge 14, with each water column pressure gauge 14 connected to two second connectors 13. The water pump is located inside the test bench.

[0058] The water column pressure module has three sections, corresponding to pressure output ranges of 0-50 inHg, 0-100 inHg, and 0-150 inHg, respectively, to meet the water column pressure testing requirements of different test pieces. During operation, the test piece is connected to the second connector 13. Since each water column pressure gauge 14 is connected to two second connectors 13, the test pieces can be connected simultaneously or separately. The water pump in the test bench forms a loop with the second connector 13 and the water column pressure gauge 14 through pipelines and provides pressure. The water column pressure gauge 14 displays the water pressure of the test piece connected to the corresponding second connector 13 in real time. By selecting water column pressure modules with different ranges, accurate water column pressure testing of test pieces with different pressure requirements can be achieved.

[0059] The control module, located on the test bench, is used for overall control of the precision pressure measuring module and the water column pressure module. The control module includes: an input interface 20 on the test bench for connecting to an external connecting pipe; a high-pressure output button 19 on the test bench for controlling the input interface 20; the input interface 20 is connected to a water pump for supplying gas to the water pump; a second pressure regulating knob 18 on the test bench for controlling the water pump; a second sub-switch knob 17 on the test bench for controlling the water pump to turn off or on; a second sub-pressure gauge 16 on the test bench for displaying the output pressure of the water pump; and a second emergency stop button 15 on the test bench for controlling the second test unit.

[0060] The control module serves as the central control unit for both the precision pressure measurement module and the water column pressure module in the second test unit. During operation, it first controls the start or stop of the water pump in the test bench via the second sub-switch knob 17. Subsequently, it adjusts the output pressure of the water pump via the second pressure regulating knob 18. The second sub-pressure gauge 16 displays the output pressure of the water pump in real time to ensure accurate pressure control. When it is necessary to replenish the water pump with gas, the external connection pipe is connected to the input interface 20, and the high-pressure output button 19 controls the on / off state of the input interface 20 to replenish the gas, thereby providing stable power for the pump pressure measurement of the precision pressure measurement module and the water pressure detection of the water column pressure module. If an abnormality occurs during the operation of the second test unit, pressing the second emergency stop button 15 will stop the operation of the emergency control unit, achieving safe and stable control of the two modules.

[0061] When used in the small-flow integrated test bench for aerospace pneumatic valves, the first test unit performs air pressure testing, and the second test unit performs water pressure testing, jointly completing sealing tests for different types of test components. When the first test unit is working, the motor drives the air pump via switch button 4. The total pressure gauge 1 displays the total pressure of the air pump in real time (0-600 psi), and the temperature gauge 2 monitors the internal temperature to ensure the air pump's lifespan. Subsequently, four individual pressure measurement modules with different pressure ranges (0-50 psi, 0-100 psi, 0-200 psi, etc.) are activated via the first sub-switch knob 7. After the pressure is adjusted by the first pressure regulating knob 6, air is supplied to the test component through the output connector 5. The first sub-pressure gauge 8 displays the internal pressure of the test component, and the first flow rate gauge 9 and the second flow rate gauge 10 monitor the air pump flow rate. In case of abnormality, the system can be stopped urgently via the first emergency stop button 3. The second test unit is controlled by the control module. The core mechanism first starts the water pump via the second sub-switch knob 17. After adjusting the pressure via the second pressure regulating knob 18, the output pressure is displayed by the second sub-pressure gauge 16. The input interface 20 connects to an external connecting pipe, and the high-pressure output button 19 controls the air supply to ensure stable power. Three precision pressure measuring modules with different ranges (0-100, 0-200, 0-600) are connected to the test piece via the first connector 12. After the water pump pumps air, the precision pressure gauge 11 displays the pressure inside the test piece. Three water column pressure modules with different ranges (0-50 inHg, 0-100 inHg, 0-150 inHg) are connected to the test piece via the second connector 13. One water column pressure gauge 14 corresponds to two second connectors 13, which can detect simultaneously or separately. After the water pump supplies pressure, the water column pressure gauge 14 displays the water pressure of the test piece. If the second test unit malfunctions, it can be stopped immediately via the second emergency stop button 15.

[0062] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A small-flow integrated test bench for aero-aerodynamic valves, characterized in that, include: The first and second test units are both located on the test bench; The first test unit includes: A central control module, located on the test bench, is used to control the test bench; A single pressure measurement module is installed on the test bench, and there are at least two modules, with each module measuring different pressure data. The second test unit includes: A precision pressure measurement module, which is located on the test bench, and there are at least two of them, which are used to test test pieces with different requirements; A water column pressure module, which is installed on the test bench, and there are at least two of them, which are used to perform water column pressure testing on test pieces with different requirements; A control module, located on the test bench, is used to perform overall control of the precision pressure measuring module and the water column pressure module.

2. The integrated test bench for small flow rates of aerodynamic valves according to claim 1, characterized in that: The central control module includes: A total pressure gauge (1) is installed on the test bench and is used to display the pressure data of the first test unit; A thermometer (2) is placed on the test bench and is used to measure the temperature of the first test unit; The first emergency stop button (3) is located on the test bench and is used to prevent the first test unit from pausing when it is not working. A switch button (4) is located on the test bench and is used to control the start of the first test unit; The test bench is equipped with a motor, which is electrically connected to the switch button (4), and the switch button (4) controls the motor.

3. A small-flow integrated test bench for aerodynamic valves according to claim 1 or 2, characterized in that: The single pressure measurement module includes: Output interface (5), which is located on the test bench, is used to connect to the test piece; The first voltage regulating knob (6) is located on the test bench and is connected to the output interface (5). It is used to control the output of the output interface (5). The first sub-switch knob (7) is located on the test bench and is connected to the output interface (5). It is used to control whether the output interface (5) is turned on. The first sub-pressure gauge (8) is located on the test bench and is used to display the pressure in the detection element connected to the output interface (5); The test bench is equipped with an air pump, which applies pressure to the test piece through the output interface (5).

4. The integrated test bench for small flow rates of aerodynamic valves according to claim 3, characterized in that: The first test unit further includes a first flow rate meter (9) and a second flow rate meter (10). The first flow rate meter (9) and the second flow rate meter (10) are mounted on the test bench and connected to the air pump to display the flow rate of the air pump.

5. The integrated test bench for small flow rates of aerodynamic valves according to claim 1, characterized in that: The precision pressure measurement module includes: The first insertion interface (12) is provided on the test bench and is used to insert the test piece; A precision pressure gauge (11) is provided on the test bench and is connected to the first connector (12). It is used to display the pressure inside the test piece connected to the first connector (12).

6. The integrated test bench for small flow rates of aerodynamic valves according to claim 5, characterized in that: The inner side of the test bench is equipped with a water pump that serves the second test unit. The water pump is connected to the precision pressure gauge (11) and the first connector (12) and is used to pump air pressure to the test piece.

7. The integrated test bench for small flow rates of aerodynamic valves according to claim 6, characterized in that: The water column pressure module includes: A second connector (13) is provided on the test bench, which is used to connect the test piece; A water column pressure gauge (14) is installed on the test bench and connected to the second connector (13), which is used to display the water pressure of the test piece connected to the second connector (13); A water pump is connected to the second connector (13) and the water column pressure gauge (14), and the water pump is located inside the test bench.

8. The integrated test bench for small flow rates of aerodynamic valves according to claim 7, characterized in that: The control module includes: An input interface (20) is provided on the test bench, which is used to connect an external connecting pipe; The high voltage output button (19) located on the test bench is used to control the input interface (20); The input interface (20) is connected to the water pump and is used to supply gas to the water pump; A second pressure regulating knob (18) is provided on the test bench, which is used to control the water pump; The second sub-switch knob (17) located on the test bench is used to control the water pump to start or stop. A second sub-pressure gauge (16) is provided on the test bench, which is used to display the output pressure of the water pump; A second emergency stop button (15) is provided on the test bench, which is used to control the second test unit.

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