Comprehensive performance tester for air breathing pressure reducer

Abstract

The utility model belongs to the technical field of fitting inspection of air respirators, and particularly relates to a comprehensive performance tester for an air breathing pressure reducer, which comprises an air source interface, the air source interface is connected with a sample pressure reducer interface through a high-pressure pipeline, the sample pressure reducer interface is used for being butted with a sample pressure reducer, and an air source high-pressure pressure gauge is arranged on the high-pressure pipeline; the air source interface is further connected with a pressure reducer safety valve test adjusting valve through a medium-pressure pipeline, a medium-pressure pressure reducer is arranged on the medium-pressure pipeline, the pressure reducer safety valve test adjusting valve is further connected with a medium-pressure quick-plug interface through a low-pressure pipeline, and the medium-pressure quick-plug interface is used for being in butt joint with a pressure reducer output connector. A low-pressure exhaust valve and an output low-pressure pressure gauge are arranged on the low-pressure pipeline, and the output low-pressure pressure gauge is located between the low-pressure exhaust valve and the medium-pressure quick-plug connector. The tester can comprehensively test the core performance of an air breathing pressure reducer, the performance of a safety valve and the alarm pressure of an alarm, and ensures the safety and reliability of a pressure reducer assembly in use.

Description

Technical Field

[0001] This utility model relates to a comprehensive performance tester for air breathing pressure reducers, belonging to the technical field of air breathing apparatus accessory inspection. Background Technology

[0002] An air respirator is a pressure-reducing component in a respiratory protection device used by workers in environments with poor air quality or those prone to poisoning. Its main function is to reduce the pressure of high-pressure gas in a cylinder, thereby outputting medium-pressure gas suitable for human respiration.

[0003] An air respirator assembly typically consists of several precision components, including a pressure reducer, safety valve, alarm, air delivery tube, and output connector. The pressure reducer is its core component, responsible for reducing the pressure of the high-pressure gas. The alarm sounds when the cylinder pressure drops to a certain range, alerting the user to evacuate immediately. The air delivery tube delivers the reduced-pressure gas to the output connector. The performance of the pressure reducer, safety valve, and alarm needs to be tested regularly to ensure they meet usage requirements. Utility Model Content

[0004] This invention provides a comprehensive performance tester for air respirator pressure regulators, which can test the performance of pressure regulators, safety valves, and alarms in an air respirator assembly.

[0005] The comprehensive performance tester for air breathing pressure regulators of this utility model includes an air source interface, which is connected to a sample pressure regulator interface via a high-pressure pipeline. The sample pressure regulator interface is used to dock with the sample pressure regulator. A high-pressure gauge is provided on the high-pressure pipeline. The air source interface is also connected to a pressure regulator safety valve test regulating valve via a medium-pressure pipeline. A medium-pressure pressure regulator is provided on the medium-pressure pipeline. The pressure regulator safety valve test regulating valve is connected to a medium-pressure quick-connect interface via a low-pressure pipeline. The medium-pressure quick-connect interface is used to dock with the pressure regulator output connector. A low-pressure exhaust valve and an output low-pressure gauge are provided on the low-pressure pipeline. The output low-pressure gauge is located between the low-pressure exhaust valve and the medium-pressure quick-connect interface.

[0006] The high-pressure pipeline is also equipped with a high-pressure regulating valve, which is located before the high-pressure gauge of the gas source.

[0007] In addition, a tester safety valve is provided on the medium-pressure pipeline, which is located between the medium-pressure pressure reducer and the pressure reducer safety valve test regulating valve.

[0008] All pipelines of this utility model are located inside the tester housing; the high-pressure gas source gauge, the low-pressure output gauge, the high-pressure regulating valve, the sample pressure reducer interface, the pressure reducer safety valve, the test regulating valve, the low-pressure exhaust valve, and the medium-pressure quick-connect interface are installed on the operation panel on the front of the tester housing; the gas source interface and the tester safety valve are located on the back of the tester housing.

[0009] This invention is mainly used to test the performance (output pressure) of air breathing pressure regulators, the performance (opening pressure, full discharge pressure, closing pressure) of safety valves, and the alarm pressure of alarm devices.

[0010] The advantages of this utility model compared with the prior art are:

[0011] 1. This tester can comprehensively test the core performance (output pressure) of the air breathing pressure regulator, the performance of the safety valve (opening pressure, full discharge pressure, closing pressure), and the alarm pressure of the alarm, ensuring the safety and reliability of the pressure regulator assembly during use.

[0012] 2. The design of the tester makes the connection and operation process simple and clear. Through intuitive pipeline connections and valve control, users can easily complete test preparation and execution.

[0013] 3. All pipes and interfaces are integrated into the tester housing or on the housing, making it highly portable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the pipeline connection structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure for mounting the air breathing pressure reducer assembly onto the testing instrument.

[0016] Figure 3 This is a schematic diagram of the airflow direction during the testing of pressure reducer and alarm performance.

[0017] Figure 4 This is a schematic diagram illustrating the airflow direction during safety valve performance testing.

[0018] Figure 5 This is a schematic diagram of the front structure of the tester housing.

[0019] In the diagram: 1. Gas source interface; 2. Medium-pressure regulator; 3. Tester safety valve; 4. Gas source high-pressure gauge; 5. Output low-pressure gauge; 6. High-pressure regulating valve; 7. Sample regulator interface; 8. Regulator safety valve test regulating valve; 9. Low-pressure exhaust valve; 10. Medium-pressure quick-connect interface; 11. High-pressure pipeline; 12. Medium-pressure pipeline; 13. Low-pressure pipeline; 14. Sample regulator; 15. Regulator safety valve; 16. Alarm; 17. Regulator output connector; 18. Tester housing. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments.

[0021] The description of this utility model is merely a structural or even functional description of the embodiments, and the scope of this utility model is not limited by the embodiments described herein.

[0022] like Figures 1-5 As shown, this embodiment is achieved through the following technical solution: including a gas source interface 1, the gas source interface 1 is connected to the sample pressure reducer interface 7 through a high-pressure pipeline 11, the sample pressure reducer interface 7 is used to dock with the sample pressure reducer 14, a gas source high-pressure gauge 4 is provided on the high-pressure pipeline 11, and a high-pressure regulating valve 6 is also provided on the high-pressure pipeline 11, the high-pressure regulating valve 6 is located before the gas source high-pressure gauge 4.

[0023] The gas source interface 1 is also connected to the pressure reducer safety valve test regulating valve 8 through the medium pressure pipeline 12. The medium pressure pipeline 12 is equipped with a medium pressure reducer 2 and a test instrument safety valve 3. The test instrument safety valve 3 is located between the medium pressure reducer 2 and the pressure reducer safety valve test regulating valve 8.

[0024] The pressure reducer safety valve test regulating valve 8 is connected to the medium pressure quick connector 10 through the low pressure pipeline 13. The medium pressure quick connector 10 is used to connect with the pressure reducer output connector 17. The low pressure pipeline 13 is equipped with a low pressure exhaust valve 9 and an output low pressure gauge 5. The output low pressure gauge 5 is located between the low pressure exhaust valve 9 and the medium pressure quick connector 10.

[0025] All pipelines in this embodiment are located inside the tester housing 18; the high-pressure gas source gauge 4, the low-pressure output gauge 5, the high-pressure regulating valve 6, the sample pressure reducer interface 7, the pressure reducer safety valve test regulating valve 8, the low-pressure exhaust valve 9, and the medium-pressure quick-connect interface 10 are installed on the operation panel on the front of the tester housing 18; the gas source interface 1 and the tester safety valve 3 are located on the back of the tester housing 18.

[0026] When using the equipment, place it on a flat operating table and connect the air supply. Connect the air supply to the air source interface 1 of the equipment, connect the sample pressure reducer 14 to the sample pressure reducer interface 7 of the instrument, and connect the pressure reducer output connector to the medium-pressure quick-connect interface 10. Close the high-pressure regulating valve 6 of the tester, the pressure reducer safety valve test regulating valve 8, and the low-pressure exhaust valve 9.

[0027] 1. Pressure reducer performance test (flow direction diagram as shown) Figure 3 )

[0028] Turn on the gas source, open the low-pressure exhaust valve 9, slowly open the high-pressure regulating valve 6, observe the high-pressure gauge 4 of the gas source to ensure that the pressure reaches between 2-30MPa, observe the low-pressure gauge 5 of the output, and the displayed value is the output pressure of the pressure reducer 14 of the sample.

[0029] 2. Safety valve performance test (flow direction diagram as shown) Figure 4 )

[0030] Slowly open the high-pressure regulating valve 6 and observe the high-pressure gauge 4 to ensure the pressure reaches between 2-30 MPa. Slowly open the pressure regulator safety valve test regulating valve 8 and observe the low-pressure output gauge 5. When you hear the pressure regulator safety valve 15 venting, record the pressure at this time as the 'opening pressure' (if only the high-pressure line 11 is supplied, the pressure reaching the pressure regulator safety valve 15 will be the low pressure after being reduced by the sample pressure regulator 14, which cannot open the sample pressure regulator 14, so the medium-pressure line 12 is required); then fully open the pressure regulator safety valve test regulating valve 8 and observe the low-pressure output gauge 5. After the pressure stabilizes, record the pressure at this time as the 'full discharge pressure'. Then close the pressure regulator safety valve test regulating valve 8 and observe the low-pressure output gauge 5. After the pressure stabilizes, record the pressure at this time as the 'closing pressure'.

[0031] 3. Alarm pressure (flow diagram as shown) Figure 3 )

[0032] Slowly open the high-pressure regulating valve 6 and observe the high-pressure gauge 4 of the gas source to ensure that the pressure reaches between 2-30 MPa. Slowly open the low-pressure exhaust valve 9 to gradually reduce the gas source pressure. When the alarm 16 sounds, read the value on the high-pressure gauge 4 of the gas source, which is the alarm pressure value of the alarm.

[0033] 4. End of work

[0034] Turn off the gas source, close the high-pressure regulating valve 6, and keep the low-pressure exhaust valve 9 open. The test is complete when the high-pressure gauge 4 of the gas source indicates 0. Only then can the sample be removed.

[0035] Of course, the above description is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. This utility model is not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of this utility model should be included in the patent coverage of this utility model.

Claims

1. An air breathing decompressor comprehensive performance tester, characterized in that, The gas source interface (1) is connected with the sample pressure reducer interface (7) through the high-pressure pipeline (11), the sample pressure reducer interface (7) is used for docking with the sample pressure reducer (14), the high-pressure pipeline (11) is provided with the gas source high-pressure pressure gauge (4); the gas source interface (1) is also connected with the pressure reducer safety valve test adjusting valve (8) through the medium-pressure pipeline (12), the medium-pressure pipeline (12) is provided with the medium-pressure pressure reducer (2), the pressure reducer safety valve test adjusting valve (8) is connected with the medium-pressure quick connector (10) through the low-pressure pipeline (13), the medium-pressure quick connector (10) is used for docking with the pressure reducer output connector (17), the low-pressure pipeline (13) is provided with the low-pressure exhaust valve (9) and the output low-pressure pressure gauge (5), and the output low-pressure pressure gauge (5) is located between the low-pressure exhaust valve (9) and the medium-pressure quick connector (10).

2. The integrated performance test instrument for air breathing pressure reducers according to claim 1, characterized in that, The high-pressure pipeline (11) is also provided with the high-pressure adjusting valve (6), and the high-pressure adjusting valve (6) is located before the gas source high-pressure pressure gauge (4).

3. The air breathing decompressor integrated performance tester of claim 2, wherein, The medium-pressure pipeline (12) is provided with the tester safety valve (3), and the tester safety valve (3) is located between the medium-pressure pressure reducer (2) and the pressure reducer safety valve test adjusting valve (8).

4. The air breathing decompressor integrated performance tester of claim 3, wherein, All the pipelines are located in the tester box (18); the gas source high-pressure pressure gauge (4), the output low-pressure pressure gauge (5), the high-pressure adjusting valve (6), the sample pressure reducer interface (7), the pressure reducer safety valve test adjusting valve (8), the low-pressure exhaust valve (9) and the medium-pressure quick connector (10) are installed on the operation panel of the front face of the tester box (18); and the gas source interface (1) and the tester safety valve (3) are located on the back face of the tester box (18).

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