Pneumatic accessory comprehensive test bench

Abstract

The utility model discloses a comprehensive test board for pneumatic accessories, which comprises a test board body, and an air source and a pressure output end are arranged in the test board body. The air source comprises an air source and a nitrogen source, and the air source is connected with a plurality of low-pressure output ports through a low-pressure test pipeline to form a low-pressure test system; the pressure output end comprises low-pressure pressure output ports and a high-pressure pressure output port, the low-pressure pressure output ports are connected in parallel, and a nitrogen gas source is connected with the high-pressure pressure output port through a high-pressure test pipeline to form a high-pressure test system. The test requirements of most pneumatic accessories can be met, the multiple low-pressure test systems carry out low-pressure tests on the multiple pneumatic accessories at the same time, the maintenance efficiency and the product quality can be greatly improved, and the maintenance period of products is greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a comprehensive testing platform for pneumatic accessories, which is mainly used for functional testing of aircraft pneumatic accessories. Background Art

[0002] The existing pneumatic accessory test bench has a complex pipeline structure and requires too many valves to control the equipment. If the operation is improper, it will cause damage to the equipment or even personnel, so it has high requirements on the skills and awareness of personnel. In addition, the testing process is cumbersome, which affects the product cycle. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a pneumatic accessory comprehensive test bench, including a test bench body, in which an air source and a pressure output terminal are arranged;

[0004] The gas source includes an air source and a nitrogen source, and the air source is connected to a plurality of low-pressure pressure output ports through a low-pressure test pipeline to form a low-pressure test system;

[0005] The pressure output end comprises a low pressure output port and a high pressure output port, the low pressure output ports are connected in parallel, and a nitrogen gas source is connected to the high pressure output port through a high pressure test pipeline to form a high pressure test system.

[0006] Preferably: the low-pressure test pipeline is provided with an air source isolation valve, a first pressure regulating valve, a first isolation valve and a first pressure gauge, the air inlet of the air source isolation valve is connected to the air outlet of the air source through a pipeline, and the air outlet of the air source isolation valve is connected to multiple low-pressure output ports through pipelines.

[0007] Preferably, the low-pressure output port is provided in plurality, and the plurality of low-pressure output ports are connected in parallel.

[0008] Preferably: each of the low-pressure output ports is connected to the air outlet of the first isolation valve through a pipeline, and a first pressure gauge is installed on the pipeline connecting the low-pressure output port and the air outlet of the first isolation valve, the air inlet of the first isolation valve is connected to the air outlet of the first pressure regulating valve through a pipeline, and the air inlet of the first pressure regulating valve is connected to the air outlet of the air source isolation valve through a pipeline.

[0009] Preferably, the outlet pressure of the air source is in the range of 0-0.8 MPa.

[0010] Preferably: a nitrogen gas source isolation valve, a second pressure regulating valve, a second isolation valve and a second pressure gauge are provided on the high-pressure test pipeline, the air inlet of the nitrogen gas source isolation valve is connected to the air outlet of the nitrogen gas source through a pipeline, and the air outlet of the nitrogen gas source isolation valve is connected to the air inlet of the second pressure regulating valve through a pipeline.

[0011] Preferably, the air outlet of the second pressure regulating valve is connected to the air inlet of the second isolation valve through a pipeline.

[0012] Preferably, the air outlet of the second isolation valve is connected to the high-pressure output port via a pipeline, and a second pressure gauge is installed on the pipeline connecting the air outlet of the second isolation valve and the high-pressure output port.

[0013] Preferably, the nitrogen gas source is a high-pressure nitrogen gas bottle, and the outlet pressure range of the nitrogen gas source is 0-4Mpa.

[0014] Preferably, three spare pressure gauges are arranged on the test bench body, and the measuring ranges of the three spare pressure gauges are 0-100psi, 0-200psi and 0-500psi respectively.

[0015] Technical effects and advantages of the utility model:

[0016] This test equipment integrates the high-pressure test system and the low-pressure test system on a test bench body, which can meet the testing requirements of most pneumatic accessories. Multiple low-pressure test systems can perform low-pressure tests on multiple pneumatic accessories at the same time, which can greatly improve maintenance efficiency and product quality and greatly shorten the product maintenance cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of a comprehensive test bench for pneumatic accessories provided in an embodiment of the present application;

[0018] Figure 2 It is a structural schematic diagram of a low-pressure test system in a pneumatic accessory comprehensive test bench provided in an embodiment of the present application;

[0019] Figure 3 It is a structural schematic diagram of a high-voltage test system in a pneumatic accessory comprehensive test bench provided in an embodiment of the present application;

[0020] Figure 4 It is a structural schematic diagram of the test bench body in the pneumatic accessory comprehensive test bench provided in an embodiment of the present application.

[0021] In the figure: 1. gas source; 11. air source; 12. nitrogen source; 2. pressure output end; 21. low pressure output port; 22. high pressure output port; 3. low pressure test pipeline; 31. air source isolation valve; 32. first pressure regulating valve; 33. first isolation valve; 34. first pressure gauge; 4. high pressure test pipeline; 41. nitrogen source isolation valve; 42. second pressure regulating valve; 43. second isolation valve; 44. second pressure gauge; 5. test bench body; 51. spare pressure gauge. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0023] See also Figure 1 , 4 As shown, in this embodiment, a pneumatic accessory comprehensive test bench is provided, which is mainly used for functional testing of aircraft pneumatic accessories, such as: aircraft heat exchangers, ozone converters, pressure differential switches, etc., including a test bench body 5, in which an air source 1 and a pressure output terminal 2 are arranged. The air source 1 includes an air source 11 and a nitrogen source 12, and the pressure output terminal 2 includes a plurality of low-pressure pressure output ports 21 and a high-pressure pressure output port 22. The air source 11 is connected to the plurality of low-pressure pressure output ports 21 through a low-pressure test pipeline 3 to form a low-pressure test system, and the nitrogen source 12 is connected to the high-pressure pressure output port 22 through a high-pressure test pipeline 4 to form a high-pressure test system.

[0024] In this embodiment, see Figure 2 As shown, the low-pressure test pipeline 3 is provided with an air source isolation valve 31, multiple first pressure regulating valves 32, multiple first isolation valves 33 and multiple first pressure gauges 34, the air inlet of the air source isolation valve 31 is connected to the air outlet of the air source 11 through a pipeline, the air outlet of the air source isolation valve 31 is connected to multiple low-pressure pressure output ports 21 through a pipeline, the multiple low-pressure pressure output ports 21 are connected in parallel, each low-pressure pressure output port 21 is connected to the air outlet of the first isolation valve 33 through a pipeline, and a first pressure gauge 34 is installed on the pipeline connecting the low-pressure pressure output port 21 and the air outlet of the first isolation valve 33, the air inlet of the first isolation valve 33 is connected to the air outlet of the first pressure regulating valve 32 through a pipeline, and the air inlet of the first pressure regulating valve 32 is connected to the air outlet of the air source isolation valve 31 through a pipeline.

[0025] Furthermore, the outlet pressure range of the air source 11 is 0-0.8 MPa, and the test medium is air.

[0026] Specifically, when performing a low-pressure test, the pneumatic accessory is connected to the low-pressure pressure output port 21, the air source 11 is opened, the gas enters the low-pressure test pipeline 3, the air source pressure is shut off by the air source isolation valve 31, the first pressure regulating valve 32 is used to adjust the required test pressure, the regulated pressure is shut off by the first isolation valve 33, the first pressure gauge 34 is used to display the regulated pressure, the pressure output port of the first pressure gauge 34 obtains the test pressure, and then the test is performed, and multiple pneumatic accessories can be tested at low pressure at the same time through multiple low-pressure pressure output ports 21, and the operation is simple and quick.

[0027] In this embodiment, see Figure 3 As shown, the high-pressure test pipeline 4 is provided with a nitrogen gas source isolation valve 41, a second pressure regulating valve 42, a second isolation valve 43 and a second pressure gauge 44, the air inlet of the nitrogen gas source isolation valve 41 is connected to the air outlet of the nitrogen gas source 12 through a pipeline, the air outlet of the nitrogen gas source isolation valve 41 is connected to the air inlet of the second pressure regulating valve 42 through a pipeline, the air outlet of the second pressure regulating valve 42 is connected to the air inlet of the second isolation valve 43 through a pipeline, the air outlet of the second isolation valve 43 is connected to the high-pressure pressure output port 22 through a pipeline, and a second pressure gauge 44 is installed on the pipeline connecting the air outlet of the second isolation valve 43 and the high-pressure pressure output port 22.

[0028] Furthermore, the nitrogen gas source 12 is a high-pressure nitrogen gas bottle, the outlet pressure range of the nitrogen gas source 12 is 0-4Mpa, and the test medium is nitrogen.

[0029] Specifically, when performing high-pressure testing, the pneumatic accessory is connected to the high-pressure pressure output port 22, the nitrogen gas source 12 is opened, the gas enters the high-pressure test pipeline 4, the gas source pressure is shut off by the nitrogen gas source isolation valve 41, the second pressure regulating valve 42 is used to adjust the required test pressure, the regulated pressure is shut off by the second isolation valve 43, the second pressure gauge 44 is used to display the regulated pressure, the test pressure is obtained at the pressure output port of the second pressure gauge 44, and then the test is performed, the test pressure is obtained through the high-pressure pressure output port 22, and the pneumatic accessory is subjected to a high-pressure test.

[0030] In this embodiment, one end of the pneumatic accessory is connected to the low pressure output port 21, and the other end of the pneumatic accessory is connected to the high pressure output port 22, and the air source 11 and the nitrogen source 12 are opened to perform a pressure difference test on the pneumatic accessory.

[0031] For further information, see Figure 4As shown, three spare pressure gauges 51 are arranged on the test bench body 5, and the measuring ranges are 0-100psi, 0-200psi and 0-500psi respectively, which are used to prevent the system pressure gauge from failing and for other testing needs. Two flow meters are also arranged, which are used when the test product needs to be flow tested. One flow meter has a range of 0-20 liters / minute, which is used for small flow testing, and the other flow meter has a range of 0-200 liters / minute, which is used for large flow testing. A differential pressure gauge is also arranged, which is used when the test product needs a differential pressure test.

[0032] The working principle of the utility model is:

[0033] This test equipment integrates multiple systems on a test bench body 5, and can meet the testing requirements of most pneumatic accessories, including functional testing, internal leakage testing, external leakage testing, and pressure resistance testing, which greatly improves maintenance efficiency and product quality and greatly shortens the product maintenance cycle.

[0034] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A pneumatic accessory comprehensive test bench, characterized in that: The test bench comprises a test bench body (5), wherein a gas source (1) and a pressure output end (2) are arranged in the test bench body (5); The gas source (1) comprises an air source (11) and a nitrogen source (12); the air source (11) is connected to a plurality of low-pressure output ports (21) via a low-pressure test pipeline (3) to form a low-pressure test system; The pressure output end (2) comprises a low-pressure output port (21) and a high-pressure output port (22), the low-pressure output ports (21) are connected in parallel, and a nitrogen gas source (12) is connected to the high-pressure output port (22) via a high-pressure test pipeline (4) to form a high-pressure test system.

2. A pneumatic accessory comprehensive test bench according to claim 1, characterized in that: The low-pressure test pipeline (3) is provided with an air source isolation valve (31), a first pressure regulating valve (32), a first isolation valve (33) and a first pressure gauge (34); the air inlet of the air source isolation valve (31) is connected to the air outlet of the air source (11) via a pipeline, and the air outlet of the air source isolation valve (31) is connected to a plurality of low-pressure output ports (21) via pipelines.

3. A pneumatic accessory comprehensive test bench according to claim 1, characterized in that: The low-pressure pressure output ports (21) are provided in plurality, and the plurality of low-pressure pressure output ports (21) are connected in parallel.

4. A pneumatic accessory comprehensive test bench according to claim 3, characterized in that: Each of the low-pressure output ports (21) is connected to the air outlet of the first isolation valve (33) via a pipeline, and a first pressure gauge (34) is installed on the pipeline connecting the low-pressure output port (21) and the air outlet of the first isolation valve (33), the air inlet of the first isolation valve (33) is connected to the air outlet of the first pressure regulating valve (32) via a pipeline, and the air inlet of the first pressure regulating valve (32) is connected to the air outlet of the air source isolation valve (31) via a pipeline.

5. The pneumatic accessory comprehensive test bench according to claim 1, characterized in that: The outlet pressure of the air source (11) is in the range of 0-0.8 MPa.

6. A pneumatic accessory comprehensive test bench according to claim 1, characterized in that: The high-pressure test pipeline (4) is provided with a nitrogen gas source isolation valve (41), a second pressure regulating valve (42), a second isolation valve (43) and a second pressure gauge (44); the gas inlet of the nitrogen gas source isolation valve (41) is connected to the gas outlet of the nitrogen gas source (12) through a pipeline, and the gas outlet of the nitrogen gas source isolation valve (41) is connected to the gas inlet of the second pressure regulating valve (42) through a pipeline.

7. A pneumatic accessory comprehensive test bench according to claim 6, characterized in that: The air outlet of the second pressure regulating valve (42) is connected to the air inlet of the second isolation valve (43) through a pipeline.

8. A pneumatic accessory comprehensive test bench according to claim 7, characterized in that: The gas outlet of the second isolation valve (43) is connected to the high-pressure output port (22) via a pipeline, and a second pressure gauge (44) is installed on the pipeline connecting the gas outlet of the second isolation valve (43) and the high-pressure output port (22).

9. The pneumatic accessory comprehensive test bench according to claim 1, characterized in that: The nitrogen gas source (12) is a high-pressure nitrogen gas bottle, and the outlet pressure range of the nitrogen gas source (12) is 0-4Mpa.

10. The pneumatic accessory comprehensive test bench according to claim 1, characterized in that: The test bench body (5) is provided with three spare pressure gauges (51), and the measuring ranges of the three spare pressure gauges (51) are 0-100psi, 0-200psi and 0-500psi respectively.

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