Test bed and test method for testing performance of pressurized building system

Abstract

The invention discloses a test bed and a test method for testing the performance of a supercharged building system. The test bed comprises a plateau simulation cabin; the negative pressure device is used for providing a negative pressure environment for the plateau simulation cabin to simulate a plateau environment; the adjusting system is arranged in the plateau simulation cabin and used for adjusting the temperature and / or humidity in the plateau simulation cabin; the anechoic chamber is arranged in the plateau simulation cabin; the pressurization simulation cabin is arranged in the anechoic chamber and is provided with a pressurization device, a pressurization pipeline, an exhaust pipeline and components; an acquisition system; the monitoring system is used for monitoring air pressure, temperature and humidity; the data processing system is respectively connected with the monitoring system, the adjusting system, the negative pressure device, the supercharging device and the acquisition system, and is used for respectively controlling the supercharging device, the negative pressure device and the adjusting system according to the air pressure data, the temperature data and the humidity data fed back by the monitoring system; and the processor is also used for receiving the test data acquired by the acquisition system and analyzing the test data to judge the performance of each component.

Description

Technical Field

[0001] The present invention relates to the field of testing technology, and in particular, to a test bench for pressurized building system performance testing. In addition, the present invention also relates to a testing method comprising the test bench for pressurized building system performance testing. Background Art

[0002] Pressurized buildings are emerging buildings used in low-pressure, low-oxygen environments in plateau areas. As a key system of pressurized buildings, the pressurization system inputs compressed air into the pressurized building through an external pressure source to increase the indoor air pressure, which is equivalent to lowering the altitude. During use, indoor air intake and exhaust volume control and noise issues are key factors affecting comfort. The performance of current boosting system components is affected by air pressure, temperature, etc., and the performance of components will change in high altitude areas. In order to improve the indoor air intake and exhaust volume and noise control effects of pressurized buildings, it is necessary to carry out tests on the fluid and acoustic properties of the components of the pressurization system of pressurized buildings under plateau conditions. However, at present, no professional test benches have been built in the relevant industries, and there are many changes in testing under plateau conditions. Therefore, it is very necessary to establish a multifunctional test bench and test method for testing the performance of the pressurization system of pressurized buildings at zero altitude.

[0003] In the prior art, for example, Publication No. CN117803862A provides a control system and method suitable for a micro-pressurized space, the system includes a micro-pressurized space, a sensor system, an oxygen supply system and a pressurization system, and a controller arranged in the micro-pressurized space is connected to the sensor system, the oxygen supply system and the pressurization system, and is used to establish a control model, and according to the collected sensor data, the airflow distribution of the pressurization system and the oxygen supply system is adjusted to control the stability of the gas concentration inside the micro-pressurized space. By introducing a composite air performance index for adjustment and control, the airflow distribution of the pressurization and oxygen supply pipelines is adjusted to achieve a stable and reliable gas concentration inside the micro-pressurized space, and the purpose is to provide a control method for a pressurized building system, and does not involve the test of the performance of the relevant system of the pressurized building; for example, the test cabin capable of simulating the plateau environment disclosed in Patent No. CN201921744352.2 and Patent No. CN202021265962.7 can simulate the plateau environment to realize product testing in a simulated plateau environment, but cannot be directly applied to the performance test of components of the pressurized building. Summary of the invention

[0004] The present invention provides a test bench and a test method for a pressurized building system performance test, so as to solve the technical problem that it is difficult to perform a pressurized system performance test at zero altitude.

[0005] According to one aspect of the present invention, there is provided a test bench for testing the performance of a pressurized building system, comprising:

[0006] Plateau simulation chamber, used as structural support;

[0007] A negative pressure device, connected to the plateau simulation cabin, for providing a negative pressure environment for the plateau simulation cabin to simulate a plateau environment;

[0008] A regulating system, arranged in the plateau simulation cabin, for regulating the temperature and / or humidity in the plateau simulation cabin;

[0009] An anechoic chamber, arranged in the plateau simulation cabin, for providing a low-noise environment;

[0010] A pressurized simulation cabin is arranged in the anechoic chamber and is used to simulate a pressurized building for plateau environment application. The pressurized simulation cabin is provided with a pressurizing device for providing a pressurized environment for the pressurized simulation cabin, a pressurizing pipeline connected to the pressurizing device and the pressurized simulation cabin respectively, an exhaust pipeline connected to the pressurized simulation cabin, and components arranged on the pressurizing pipeline and / or on the pressurized simulation cabin and / or on the exhaust pipeline;

[0011] An acquisition system, connected to the data processing system, for acquiring test data of components of the boost device;

[0012] A monitoring system for monitoring the air pressure in the pressurized simulation cabin and the air pressure, temperature and humidity in the plateau simulation cabin;

[0013] The data processing system is connected to the monitoring system, the regulating system, the negative pressure device, the boosting device and the acquisition system respectively, and is used to control the boosting device, the negative pressure device and the regulating system respectively according to the air pressure data, temperature data and humidity data fed back by the monitoring system, and is also used to receive the test data collected by the acquisition system and analyze it to determine the performance of each component.

[0014] As a further improvement of the above technical solution, the components include a first silencer element arranged in the boost pipeline, a second silencer element arranged in the exhaust pipeline, an electric control valve arranged in the exhaust pipeline, and a safety valve arranged in the boost simulation cabin. The acquisition system includes an acoustic collector arranged in the boost simulation cabin, a first pressure sensor arranged in the boost pipeline, a temperature sensor arranged in the boost pipeline, a first flow sensor arranged in the boost pipeline, a second flow sensor arranged in the exhaust pipeline, a second pressure sensor arranged in the exhaust pipeline, and a third pressure sensor arranged in the exhaust pipeline. The second pressure sensor and the third pressure sensor are respectively located at both ends of the electric control valve.

[0015] As a further improvement of the above technical solution, the monitoring system includes a first atmospheric environment detector arranged in the plateau simulation cabin and a second atmospheric environment detector arranged in the pressurized simulation cabin.

[0016] According to another aspect of the present invention, a test method is also provided, which is applied to the above-mentioned test bench for pressurized building system performance testing, and the test method comprises:

[0017] S1. Construct a plateau environment simulation model, import component characteristic curves, environmental parameters and target parameters into the data processing system, and construct a criterion for determining the test results of the test object;

[0018] S2. Set the target altitude, the negative pressure device creates a negative pressure environment for the plateau simulation cabin, the monitoring system detects the air pressure, temperature, and humidity in the plateau simulation cabin, and detects the air pressure in the pressurized simulation cabin and feeds it back to the data processing system, the data processing system adjusts the air pressure in the plateau simulation cabin through the negative pressure device, adjusts the air pressure in the pressurized simulation cabin through the pressurization device, and adjusts the temperature and humidity in the plateau simulation cabin through the adjustment system;

[0019] S3. The pressurization device of the pressurized simulation cabin starts pressurization, and the acquisition system collects test data in real time and feeds it back to the data processing system;

[0020] S4. The data processing system determines whether the test data meets the requirements. If so, the test data is classified and sorted, and the process proceeds to step S5. If not, the data that does not meet the requirements is identified and the associated parameters are mined to analyze the causes and form an analysis report.

[0021] S5. Fit relevant parameters based on data regression analysis method, establish prediction model, predict component performance under preset working conditions, and form test result analysis report.

[0022] As a further improvement of the above technical solution, step S1 includes: in component performance testing, the judgment criteria for the test results of the test object are constructed based on the standard allowable error with reference to the theoretical parameters; in acoustic testing, the judgment criteria for the test results of the test object are constructed based on the standard acoustic limit values ​​of preset working conditions.

[0023] As a further improvement of the above technical solution, if the test object is a booster fan, the test method further includes: before step S3, replacing the first silencer element with a straight pipe.

[0024] As a further improvement of the above technical solution, if the test object is a safety valve, step S3 also includes: the pressurization device of the pressurized simulation cabin pressurizes until the safety valve opens, the data processing system records the pressure data fed back by the first pressure sensor when the safety valve opens, the pressurization device is shut down, the safety valve releases pressure until it closes, and the data processing system records the pressure value fed back by the first pressure sensor when the safety valve is closed.

[0025] As a further improvement of the above technical solution, the pressurization simulation cabin is provided with a manual valve. If the test object is an electric control valve, the test method includes: replacing the second silencer element with a straight pipe before step S3; step S3 also includes: closing the manual valve, electrically adjusting the opening of the control valve to a preset value through the data processing system, starting the boosting device to boost the pressure to the preset value, opening the manual valve, and the data processing system records the pressure values ​​fed back by the second pressure sensor and the third pressure sensor.

[0026] As a further improvement of the above technical solution, if the test object is the silencer at the air intake end, it also includes step S6: the first silencer element is replaced with the silencer to be tested, and steps S3-S5 are repeated. The data processing system compares the test data in the test result analysis report with the original acoustic data of the boosting process obtained in the booster fan performance test to obtain the silencer amount and pipe loss of the silencer to be tested.

[0027] As a further improvement of the above technical solution, if the test object is a muffler at the exhaust end, it also includes step S6: the second muffler element is replaced with the muffler to be tested, and steps S3-S5 are repeated. The data processing system compares the test data in the test result analysis report with the original acoustic data of the exhaust process obtained in the performance test of the electric control valve to obtain the muffler volume and pipe loss of the muffler to be tested.

[0028] The present invention has the following beneficial effects:

[0029] This test bench provides a negative pressure environment to simulate the plateau environment by setting up a plateau simulation cabin and a negative pressure device respectively, and establishes a real scene for the simulated working condition test of the pressurized building pressurization system. The pressurized simulation cabin and the pressurization device simulate the pressurized building, and are set in the anechoic room located in the high-pressure simulation cabin, so as to meet the requirements of the performance test of the components of the pressurized system and the acoustic effect test of the pressurized system under plateau conditions; the monitoring system monitors the environmental parameters such as air pressure, temperature and humidity, and the data processing system controls the pressurization device, the negative pressure device and the adjustment system respectively according to the air pressure data, temperature data and humidity data fed back by the monitoring system, and the test data of the components of the pressurization device are collected by the acquisition system. The data processing system completes the work of data storage, analysis and component performance determination, so as to establish the supercharged building supercharged working condition under the plateau environment, and establish a multifunctional test bench that can simulate the working state of the supercharged building in the plateau area under the condition of zero altitude area, and carry out the performance test of the components of the pressurized system and the acoustic effect test of the pressurized system under plateau conditions, so that the performance test results of the components of the pressurized device can accurately reflect its real working state in the plateau environment.

[0030] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0032] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention;

[0033] Figure 2 It is a structural schematic diagram of a plateau simulation cabin according to a preferred embodiment of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the anechoic chamber and the pressurized simulation cabin of the preferred embodiment of the present invention;

[0035] Figure 4 It is a flow chart of the testing method of the preferred embodiment of the present invention.

[0036] Legend:

[0037] 1. Negative pressure fan; 2. Adjustment system; 3. First atmospheric environment detector; 4. Booster fan; 5. First pressure sensor; 6. Temperature sensor; 7. First flow sensor; 8. First silencer element; 9. Second atmospheric environment detector; 10. Safety valve; 11. Second flow sensor; 12. Second pressure sensor; 13. Third pressure sensor; 14. Electric regulating valve; 15. Second silencer element; 16. Manual valve; 17. Plateau simulation cabin; 18. Silencer chamber; 19. Pressurized simulation cabin. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0039] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention; Figure 2 It is a structural schematic diagram of a plateau simulation cabin according to a preferred embodiment of the present invention; Figure 3 It is a schematic diagram of the structure of the anechoic chamber and the pressurized simulation cabin of the preferred embodiment of the present invention; Figure 4 It is a flow chart of the testing method of the preferred embodiment of the present invention.

[0040] like Figures 1 to 3 As shown, the test bench for pressurized building system performance testing of this embodiment includes:

[0041] A plateau simulation cabin 17, used as a structural support;

[0042] A negative pressure device, comprising a negative pressure fan 1 connected to the plateau simulation cabin 17, for providing a negative pressure environment for the plateau simulation cabin 17 to simulate a plateau environment;

[0043] The regulating system 2 is arranged in the plateau simulation cabin 17 and is used to regulate the temperature and / or humidity in the plateau simulation cabin 17;

[0044] The anechoic chamber 18 is arranged in the plateau simulation cabin 17 to provide a low-noise environment;

[0045] The pressurized simulation cabin 19 is arranged in the anechoic chamber 18 and is used to simulate a pressurized building for plateau environment application. The pressurized simulation cabin 19 is provided with a pressurizing device for providing a pressurized environment for the pressurized simulation cabin 19, a pressurizing pipeline connected to the pressurizing device and the pressurized simulation cabin 19 respectively, an exhaust pipeline connected to the pressurized simulation cabin 19, and components arranged on the pressurizing pipeline and / or the pressurized simulation cabin 19 and / or the exhaust pipeline;

[0046] An acquisition system, connected to the data processing system, for acquiring test data of components of the booster device;

[0047] A monitoring system for monitoring the air pressure in the pressurized simulation cabin 19 and the air pressure, temperature and humidity in the plateau simulation cabin 17;

[0048] The data processing system is connected to the monitoring system, the regulating system 2, the negative pressure device, the boosting device and the acquisition system respectively, and is used to control the boosting device, the negative pressure device and the regulating system 2 respectively according to the air pressure data, temperature data and humidity data fed back by the monitoring system, and is also used to receive the test data collected by the acquisition system and analyze it to determine the performance of each component.

[0049] Among them, the interior of the plateau simulation cabin 17 is made of high-pressure and low-temperature resistant stainless steel materials to ensure safety and durability when simulating plateau working conditions; the main body of the pressurized simulation cabin 19 is constructed using a steel structure; the data processing system can be carried in an integrated machine outside the plateau simulation cabin 17; the monitoring system includes a first atmospheric environment detector 3 set in the plateau simulation cabin 17 and a second atmospheric environment detector 9 set in the pressurized simulation cabin 19 to feedback parameters such as air pressure, temperature, and humidity in the corresponding cabin;

[0050] It can be understood that this test bench provides a negative pressure environment to simulate the plateau environment by respectively setting up a plateau simulation cabin 17 and a negative pressure device, and establishes a real scene for the simulated working condition test of the pressurized building pressurization system. The pressurized building is simulated by the pressurized simulation cabin 19 and the pressurized device, and is set in the anechoic chamber 18 located in the high-pressure simulation cabin, so as to meet the requirements of the performance test of the components of the pressurized system and the acoustic effect test of the pressurized system under plateau conditions; the environmental parameters such as air pressure, temperature and humidity are monitored by the monitoring system, and the data processing system controls the pressurization device, the negative pressure device and the adjustment system 2 respectively according to the air pressure data, temperature data and humidity data fed back by the monitoring system, and the test data of the components of the pressurization device are collected by the acquisition system. The data processing system completes the work of data storage, analysis and component performance determination, so as to establish a pressurized building pressurization simulation working condition under the plateau environment, and establish a multifunctional test bench that can simulate the working state of the pressurized building in the plateau area under the conditions of zero altitude, and perform the performance test of the components of the pressurized system and the acoustic effect test of the pressurized system under plateau conditions, so that the performance test results of the components of the pressurized device can accurately reflect its actual working state in the plateau environment.

[0051] In this embodiment, the components include a first silencer element 8 arranged in the boost pipeline, a second silencer element 15 arranged in the exhaust pipeline, an electric regulating valve 14 arranged in the exhaust pipeline, and a safety valve 10 arranged in the boost simulation cabin 19. The acquisition system includes an acoustic collector arranged in the boost simulation cabin 19, a first pressure sensor 5 arranged in the boost pipeline, a temperature sensor 6 arranged in the boost pipeline, a first flow sensor 7 arranged in the boost pipeline, a second flow sensor 11 arranged in the exhaust pipeline, a second pressure sensor 12 arranged in the exhaust pipeline, and a third pressure sensor 13 arranged in the exhaust pipeline. The second pressure sensor 12 and the third pressure sensor 13 are respectively located at both ends of the electric regulating valve 14; the working state of each component is detected by collecting data through each sensor;

[0052] Among them, the data processing system is integrated with an automatic correction system, which is used to adjust the working status of the negative pressure fan 1 and the temperature and humidity adjustment device in real time until the target plateau environment is established in the plateau simulation cabin 17; further, the data processing system is integrated with a sensor calibration program to calibrate the accuracy of each sensor of the acquisition system in real time.

[0053] On the other hand, this embodiment provides a testing method, referring to Figure 4 , applied to the above-mentioned test bench for pressurized building system performance testing, the test method includes:

[0054] S1. Construct a plateau environment simulation model, import component characteristic curves, environmental parameters and target parameters into the data processing system, and construct a criterion for determining the test results of the test object;

[0055] Specifically, the environmental parameters such as climate, temperature, humidity and the like in different altitudes and the working parameters of the negative pressure fan 1 and the temperature and humidity regulating device are imported into the data processing system, and the working parameters of the components of the boost simulation working condition are imported into the control system, that is, the working parameters of the boost fan 44 and the electric regulating valve 14 are imported, and the boost simulation working condition control model is established.

[0056] Based on the data processing system, a large model for simulating the test environment is established, which also has the function of automatic feedback correction, so as to realize the automatic and high-precision creation of the plateau environment and the pressurized working conditions in the pressurized simulation cabin 19, laying the foundation for the smooth implementation of experimental tests; in addition, the calibration procedures of each pressure sensor and each flow sensor are connected to the control system to realize the automatic calibration of each sensor under different altitude environments;

[0057] S2. Set the target altitude, the negative pressure device creates a negative pressure environment for the plateau simulation cabin 17, the monitoring system detects the air pressure, temperature, humidity in the plateau simulation cabin 17, and detects the air pressure in the pressurized simulation cabin 19 and feeds it back to the data processing system, the data processing system adjusts the air pressure in the plateau simulation cabin 17 through the negative pressure device, adjusts the air pressure in the pressurized simulation cabin 19 through the pressurization device, and adjusts the temperature and humidity in the plateau simulation cabin 17 through the adjustment system 2;

[0058] Specifically, the atmospheric environment detector in the cabin is used to feedback the parameters such as the air pressure, temperature, and humidity in the cabin, and the automatic correction system is used to adjust the working state of the negative pressure fan 1 and the temperature and humidity adjustment device in real time until the target plateau environment is established in the plateau simulation cabin 17;

[0059] S3. The pressurization device of the pressurized simulation cabin 19 starts pressurization, and the acquisition system collects test data in real time and feeds it back to the data processing system;

[0060] S4. The data processing system determines whether the test data meets the requirements. If so, the test data is classified and sorted, and the process proceeds to step S5. If not, the data that does not meet the requirements is identified and the associated parameters are mined, the cause analysis is performed, and an analysis report is generated;

[0061] S5. Fit relevant parameters based on data regression analysis method, establish prediction model, predict component performance under preset working conditions, and form test result analysis report.

[0062] In this embodiment, step S1 includes: in component performance testing, a judgment criterion for the test results of the test object is constructed based on the standard allowable error with reference to theoretical parameters; in acoustic testing, a judgment criterion for the test results of the test object is constructed based on the standard acoustic limit values ​​of preset working conditions; wherein the data processing system integrates the component performance test module and the acoustic test module respectively.

[0063] In one embodiment, if the test object is the boost fan 4, the test method also includes: replacing the first silencer element 8 with a straight pipe before step S3; during the test, the boost fan 4 is started, and the first pressure sensor 5, the temperature sensor 6, and the first flow sensor 7 monitor the pressure, flow, and temperature parameters in real time, and feed back and store them in the component performance test module of the machine data processing system, which can be named fan performance test; the acoustic collector records the acoustic data of the cabin pressurization process and stores it in the acoustic test module, which can be named original acoustic data of the pressurization process.

[0064] Furthermore, if the test object is the silencer at the air intake end, it also includes step S6: the first silencer element 8 is replaced with the silencer to be tested, and steps S3-S5 are repeated. The data processing system compares the test data in the test result analysis report with the original acoustic data of the boosting process obtained in the performance test of the booster fan 4 to obtain the sound attenuation and pipe loss of the silencer to be tested.

[0065] In one embodiment, the pressurized simulation cabin 19 is provided with a manual valve 16. If the test object is the electric control valve 14, the test method includes: replacing the second muffler element 15 with a straight pipe before step S3; step S3 also includes: closing the manual valve 16, adjusting the opening of the electric control valve 14 to a preset value through the data processing system, starting the supercharging device to increase the pressure to a preset value, opening the manual valve 16, and the data processing system recording the pressure values ​​fed back by the second pressure sensor 12 and the third pressure sensor 13; specifically, during the test, the opening of the electric control valve 14 is set by the data processing system, and the exhaust flow rate and the pressure at both ends of the electric control valve 14 are detected by the second flow sensor 11, the second pressure sensor 12, and the third pressure sensor 13, and the feedback and storage are to the component performance test module of the machine data processing system, which can be named as the performance parameters of the electric control valve 14;

[0066] Furthermore, if the test object is a muffler at the exhaust end, it also includes step S6: the second muffler element 15 is replaced with the muffler to be tested, and steps S3-S5 are repeated to collect exhaust acoustic data and store it in the acoustic test module of the upper computer data analysis system, which can be named as the original acoustic data of the exhaust process. The data processing system compares the test data in the test result analysis report with the original acoustic data of the exhaust process obtained in the performance test of the electric control valve to obtain the noise reduction and pipe loss of the muffler to be tested.

[0067] In one embodiment, if the test object is the safety valve 10, step S3 also includes: the pressurization device of the pressurized simulation cabin 19 pressurizes until the safety valve 10 opens, the data processing system records the pressure data fed back by the first pressure sensor 5 when the safety valve 10 opens, the pressurization device is shut down, the safety valve 10 releases pressure until it closes, and the data processing system records the pressure value fed back by the first pressure sensor 5 when the safety valve 10 is closed.

[0068] It should be noted that the performance test of the electric control valve 14 can be carried out after the boosting process is completed and the performance test of the boosting fan 4 is completed and the pressure stabilization stage is entered; the performance test of the safety valve 10 can be continued after the performance test of the electric control valve 14 is completed, which greatly reduces the test time and improves the test efficiency.

[0069] This test method can not only measure the performance of the components of the boosting system in a plateau environment, but also realize the collection and testing of acoustic data related to the boosted building. When carrying out the simulated boosting condition of the boosted building, the performance test of the relevant components and the acoustic data collection can be completed synchronously through the equipped sensors, saving test time. The data processing system uses the data regression analysis method based on the stored test data to carry out fitting calculations and construct a prediction model to achieve the prediction purpose. For the same component, the operating condition parameters are input to predict the performance in advance and reduce the testing workload.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A test bench for testing the performance of a pressurized building system, characterized in that: include: A plateau simulation cabin (17), used as a structural support; A negative pressure device, connected to the plateau simulation cabin (17), used to provide a negative pressure environment for the plateau simulation cabin (17) to simulate a plateau environment; A regulating system (2), arranged in the plateau simulation cabin (17), for regulating the temperature and / or humidity in the plateau simulation cabin (17); A anechoic chamber (18), arranged in the plateau simulation cabin (17), for providing a low-noise environment; A pressurized simulation cabin (19) is arranged in the anechoic chamber (18) and is used to simulate a pressurized building for plateau environment application. The pressurized simulation cabin (19) is provided with a pressurizing device for providing a pressurized environment for the pressurized simulation cabin (19), a pressurizing pipeline connected to the pressurizing device and the pressurized simulation cabin (19) respectively, an exhaust pipeline connected to the pressurized simulation cabin (19), and components arranged on the pressurizing pipeline and / or arranged on the pressurized simulation cabin (19) and / or arranged on the exhaust pipeline; An acquisition system, connected to the data processing system, for acquiring test data of components of the boost device; A monitoring system for monitoring the air pressure of the pressurized simulation cabin (19) and the air pressure, temperature and humidity in the plateau simulation cabin (17); The data processing system is connected to the monitoring system, the regulating system (2), the negative pressure device, the boosting device and the acquisition system respectively, and is used to control the boosting device, the negative pressure device and the regulating system (2) respectively according to the air pressure data, temperature data and humidity data fed back by the monitoring system, and is also used to receive the test data collected by the acquisition system and analyze it to determine the performance of each component.

2. The test bench for pressurized building system performance testing according to claim 1, characterized in that: The components include a first silencer element (8) arranged in the boost pipeline, a second silencer element (15) arranged in the exhaust pipeline, an electric regulating valve (14) arranged in the exhaust pipeline, and a safety valve (10) arranged in the boost simulation cabin (19); the acquisition system includes an acoustic acquisition instrument arranged in the boost simulation cabin (19), a first pressure sensor (5) arranged in the boost pipeline, a temperature sensor (6) arranged in the boost pipeline, a first flow sensor (7) arranged in the boost pipeline, a second flow sensor (11) arranged in the exhaust pipeline, a second pressure sensor (12) arranged in the exhaust pipeline, and a third pressure sensor (13) arranged in the exhaust pipeline; the second pressure sensor (12) and the third pressure sensor (13) are respectively located at two ends of the electric regulating valve (14).

3. The test bench for pressurized building system performance testing according to claim 1, characterized in that: The monitoring system comprises a first atmospheric environment detector (3) arranged in the plateau simulation cabin (17) and a second atmospheric environment detector (9) arranged in the pressurized simulation cabin (19).

4. A testing method, characterized in that: The test bench for pressurized building system performance testing as claimed in claim 2, wherein the testing method comprises: S1. Construct a plateau environment simulation model, import component characteristic curves, environmental parameters and target parameters into the data processing system, and construct a criterion for determining the test results of the test object; S2. The target altitude is set, the negative pressure device creates a negative pressure environment for the plateau simulation cabin (17), the monitoring system detects the air pressure, temperature, and humidity in the plateau simulation cabin (17), and detects the air pressure in the pressurized simulation cabin (19) and feeds back to the data processing system, the data processing system adjusts the air pressure in the plateau simulation cabin (17) through the negative pressure device, adjusts the air pressure in the pressurized simulation cabin (19) through the pressurization device, and adjusts the temperature and humidity in the plateau simulation cabin (17) through the adjustment system (2); S3. The pressurization device of the pressurized simulation cabin (19) starts pressurization, and the acquisition system collects test data in real time and feeds it back to the data processing system; S4. The data processing system determines whether the test data meets the requirements. If so, the test data is classified and sorted, and the process proceeds to step S5. If not, the data that does not meet the requirements is identified and the associated parameters are mined, the cause analysis is performed, and an analysis report is generated; S5. Fit relevant parameters based on data regression analysis method, establish prediction model, predict component performance under preset working conditions, and form test result analysis report.

5. The testing method according to claim 4, characterized in that: Step S1 includes: in component performance testing, using theoretical parameters as reference to construct a criterion for determining the test results of the test object based on standard allowable errors; in acoustic testing, using standard acoustic limits of preset working conditions to construct a criterion for determining the test results of the test object.

6. The testing method according to claim 5, characterized in that: If the test object is a booster fan (4), the test method further comprises: before step S3, replacing the first silencer element (8) with a straight pipe.

7. The testing method according to claim 5, characterized in that: If the test object is a safety valve (10), step S3 also includes: the pressurizing device of the pressurized simulation cabin (19) increases the pressure until the safety valve (10) opens, the data processing system records the pressure data fed back by the first pressure sensor (5) when the safety valve (10) opens, the pressurizing device is shut down, the safety valve (10) releases pressure until it closes, and the data processing system records the pressure value fed back by the first pressure sensor (5) when the safety valve (10) is closed.

8. The testing method according to claim 5, characterized in that: The pressurized simulation cabin (19) is provided with a manual valve (16). If the test object is an electric regulating valve (14), the test method comprises: replacing the second silencer element (15) with a straight pipe before step S3; step S3 also comprises: closing the manual valve (16), adjusting the opening of the electric regulating valve (14) to a preset value through a data processing system, starting the pressurizing device to increase the pressure to a preset value, opening the manual valve (16), and the data processing system recording the pressure values ​​fed back by the second pressure sensor (12) and the third pressure sensor (13).

9. The testing method according to claim 6, characterized in that: If the test object is a silencer at the air intake end, the method further includes step S6: replacing the first silencer element (8) with the silencer to be tested, repeating steps S3-S5, and the data processing system compares the test data in the test result analysis report with the original acoustic data of the boosting process obtained in the performance test of the booster fan (4), so as to obtain the sound attenuation and pipe loss of the silencer to be tested.

10. The testing method according to claim 8, characterized in that: If the test object is a silencer at the exhaust end, the method further includes step S6: the second silencer element (15) is replaced with the silencer to be tested, and steps S3-S5 are repeated. The data processing system compares the test data in the test result analysis report with the original acoustic data of the exhaust process obtained in the performance test of the electric control valve (14), and obtains the silencer volume and pipe loss of the silencer to be tested.

Images