Test bench and test method for performance testing of pressurized building systems

Abstract

The present invention discloses a test bench and a test method for performance testing of a pressurized building system, comprising: a plateau simulation cabin; a negative pressure device, used for providing a negative pressure environment for the plateau simulation cabin to simulate a plateau environment; a regulating system, arranged in the plateau simulation cabin, used for regulating the temperature and / or humidity in the plateau simulation cabin; a soundproofing chamber, arranged in the plateau simulation cabin; a pressurized simulation cabin, arranged in the soundproofing chamber, provided with a pressurizing device, a pressurizing pipeline, an exhaust pipeline and components; an acquisition system; a monitoring system, used for monitoring air pressure, temperature and humidity; a data processing system, respectively connected to the monitoring system, the regulating system, the negative pressure device, the pressurizing device and the acquisition system, used for controlling the pressurizing device, the negative pressure device and the regulating system according to air pressure data, temperature data and humidity data fed back by the monitoring system, and also used for receiving test data collected by the acquisition system and analyzing the test data to determine the performance of the components.

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, increasing the indoor air pressure and equivalently lowering the altitude. During use, indoor air intake and exhaust volume control and noise issues are key factors affecting comfort. The performance of current pressurization system components is affected by air pressure, temperature, etc., and component performance 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 conduct tests on the fluid and acoustic properties of pressurized building pressurization system components in a plateau environment. However, at present, the relevant industries have not built professional test benches, and there are many variables in conducting tests under plateau conditions. Therefore, it is very necessary to establish a multi-functional test bench and test method suitable for testing the performance of pressurized building pressurization systems at zero altitude.

[0003] In the prior art, for example, publication number CN117803862A provides a control system and method for a micro-pressurized space. The system includes a micro-pressurized space, a sensor system, an oxygen supply system, and a pressurization system. A controller disposed within the micro-pressurized space is connected to the sensor system, the oxygen supply system, and the pressurization system to establish a control model. Based on the collected sensor data, the airflow distribution of the pressurization system and the oxygen supply system is adjusted to stabilize the gas concentration within the micro-pressurized space. By introducing a composite air performance index for regulation and control, the airflow distribution of the pressurization and oxygen supply pipelines is adjusted to achieve a stable and reliable gas concentration within the micro-pressurized space. The purpose is to provide a control method for a pressurized building system and does not involve testing the performance of the relevant systems of the pressurized building. For example, patent numbers CN201921744352.2 and CN202021265962.7 disclose test chambers capable of simulating plateau environments, which can simulate plateau environments for product testing, but cannot be directly applied to the performance testing of components in pressurized buildings. Summary of the Invention

[0004] The present invention provides a test bench and a test method for pressurized building system performance testing, so as to solve the technical problem of difficulty in performing pressurized system performance testing at zero altitude.

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

[0006] Plateau simulation cabin, 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, provided in the plateau simulation cabin, for regulating the temperature and / or humidity in the plateau simulation cabin;

[0009] An anechoic chamber is provided in the plateau simulation cabin to provide a low-noise environment;

[0010] A pressurized simulation cabin is provided in the anechoic chamber and is a pressurized building used to simulate plateau environment applications. 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 provided on the pressurizing pipeline and / or the pressurized simulation cabin and / or the exhaust pipeline;

[0011] an acquisition system connected to the data processing system and used to acquire test data of components of the boosting device;

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

[0013] A 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 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 pipe, a second silencer element arranged in the exhaust pipe, an electric control valve arranged in the exhaust pipe, 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 pipe, a temperature sensor arranged in the boost pipe, a first flow sensor arranged in the boost pipe, a second flow sensor arranged in the exhaust pipe, a second pressure sensor arranged in the exhaust pipe, and a third pressure sensor arranged in the exhaust pipe. 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 testing method is provided, which is applied to the above-mentioned test bench for pressurized building system performance testing, and the testing method comprises:

[0017] S1. Build a plateau environment simulation model, import component characteristic curves, environmental parameters, and target parameters into the data processing system, and establish 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 in the plateau simulation chamber. The monitoring system detects the air pressure, temperature, and humidity in the plateau simulation chamber, as well as the air pressure in the pressurized chamber, and feeds this information to the data processing system. The data processing system adjusts the air pressure in the plateau simulation chamber via the negative pressure device, the air pressure in the pressurized chamber via the pressurization device, and the temperature and humidity in the plateau simulation chamber via the control system.

[0019] S3. The pressurization device of the pressurized simulation chamber begins 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 associated parameters are mined to analyze the causes and generate an analysis report.

[0021] S5. Fit relevant parameters based on data regression analysis methods, establish a prediction model, predict component performance under preset working conditions, and generate a 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 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: replacing the first silencer element with a straight pipe before step S3.

[0024] As a further improvement of the above technical solution, if the test object is a safety valve, step S3 also includes: the pressurizing 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 pressurizing 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 pressurized 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 recording 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 sound attenuation 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 the 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 electric control valve performance test to obtain the sound attenuation amount 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 pressurized device simulate the pressurized building and are set up in the anechoic room located in the high-pressure simulation cabin, which meets the requirements of carrying out the performance test of the pressurized system components and the acoustic effect test 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 according to the air pressure data, temperature data and humidity data fed back by the monitoring system. The acquisition system collects the test data of the components of the pressurization device, and the data processing system completes the data storage, analysis and component performance determination, etc., to achieve the establishment of the pressurized building pressurization simulation working condition under the plateau environment, and to 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, to carry out the performance test of the pressurized system components and the acoustic effect test under plateau conditions, so that the component performance test results of the pressurization device can accurately reflect its actual working state in the plateau environment.

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

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

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

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

[0034] Figure 3 2. It is a schematic structural diagram of an anechoic chamber and a pressurized simulation cabin according to a 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. Anechoic chamber; 19. Pressurized simulation cabin. DETAILED DESCRIPTION

[0038] The embodiments of the present invention will be 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 This is a structural diagram of a plateau simulation cabin according to a preferred embodiment of the present invention; Figure 3 2. It is a schematic structural diagram of an anechoic chamber and a pressurized simulation cabin according to a 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] Plateau simulation cabin 17, used as structural support;

[0042] The negative pressure device includes a negative pressure fan 1 connected to the plateau simulation cabin 17, which is used to provide a negative pressure environment for the plateau simulation cabin 17 to simulate the plateau environment;

[0043] The regulating system 2 is provided 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 provided 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 in 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 collecting 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. It 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. It is also used to receive the test data collected by the acquisition system and analyze it to determine the performance of each component.

[0049] The interior of the plateau simulation cabin 17 is made of high-pressure and low-temperature resistant stainless steel 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 installed in an integrated device outside the plateau simulation cabin 17. The monitoring system includes a first atmospheric environment detector 3 installed in the plateau simulation cabin 17 and a second atmospheric environment detector 9 installed in the pressurized simulation cabin 19 to provide feedback on parameters such as air pressure, temperature, and humidity in the corresponding cabins.

[0050] It can be understood that this test bench provides a negative pressure environment for simulating the plateau environment by respectively setting up a plateau simulation cabin 17 and a negative pressure device, thereby establishing a real scene for the simulated working condition test of the pressurized building pressurization system. The pressurized simulation cabin 19 and the pressurization device simulate the pressurized building and are set in the anechoic chamber 18 located in the high-pressure simulation cabin, so as to meet the requirements of carrying out the performance test of the pressurized system components 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 2 respectively according to the air pressure data, temperature data and humidity data fed back by the monitoring system. The test data of the components of the pressurization device are collected by the acquisition system, and the data processing system completes the data storage, analysis and component performance determination, etc., to achieve the establishment of a pressurized building pressurization simulation working condition under the plateau environment, and to achieve the establishment of 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 to 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 component performance test results of the pressurization device can accurately reflect its actual working state in the plateau environment.

[0051] In this embodiment, the components include a first silencer element 8 provided in the boost line, a second silencer element 15 provided in the exhaust line, an electric regulating valve 14 provided in the exhaust line, and a safety valve 10 provided in the boost simulation cabin 19. The acquisition system includes an acoustic collector provided in the boost simulation cabin 19, a first pressure sensor 5 provided in the boost line, a temperature sensor 6 provided in the boost line, a first flow sensor 7 provided in the boost line, a second flow sensor 11 provided in the exhaust line, a second pressure sensor 12 provided in the exhaust line, and a third pressure sensor 13 provided in the exhaust line. 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 status of each component is detected by collecting data from 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 control 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. Build a plateau environment simulation model, import component characteristic curves, environmental parameters, and target parameters into the data processing system, and establish a criterion for determining the test results of the test object;

[0055] Specifically, the environmental parameters such as climate, temperature, humidity, etc. at different altitudes, as well as the working parameters of the negative pressure fan 1 and the temperature and humidity control 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 to establish the boost simulation working condition control model.

[0056] Based on the data processing system, a large-scale model simulating the test environment was established, equipped with a feedback and automatic correction function, enabling automatic and high-precision creation of the plateau environment and the pressurized operating conditions in the pressurized simulation chamber 19, laying the foundation for the smooth conduct of experimental tests. In addition, the calibration procedures of each pressure sensor and each flow sensor were connected to the control system to achieve 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, and humidity in the plateau simulation cabin 17, as well as the air pressure in the pressurized simulation cabin 19, and feeds this back to the data processing system. The data processing system adjusts the air pressure in the plateau simulation cabin 17 via the negative pressure device, adjusts the air pressure in the pressurized simulation cabin 19 via the pressurization device, and adjusts the temperature and humidity in the plateau simulation cabin 17 via the adjustment system 2.

[0058] Specifically, the atmospheric environment detector in the cabin is used to feedback the cabin's air pressure, temperature, humidity and other parameters, and the automatic correction system 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;

[0059] S3. The pressurized simulation chamber 19 starts pressurizing, 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 associated parameters are mined to analyze the causes and generate an analysis report.

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

[0062] In this embodiment, step S1 includes: in the component performance test, 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 the acoustic test, the judgment criteria for the test results of the test object are constructed based on the standard acoustic limit values ​​of the 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 booster fan 4, the test method also includes: replacing the first silencer element 8 with a straight pipe before step S3; during the test, the booster 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, step S6 is also included: 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 the 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 through 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 the muffler at the exhaust end, step S6 is also included: the second muffler element 15 is replaced with the muffler to be tested, steps S3-S5 are repeated, exhaust acoustic data is collected, and stored 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 amount 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 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 the 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 continue 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 pressurization system components in plateau environments, but also realize the collection and testing of acoustic data related to pressurized buildings. When carrying out simulated pressurization conditions of pressurized buildings, the performance test of related components and the collection of acoustic data are 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, reducing the testing workload.

[0070] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A test bench for pressurized building system performance testing, characterized in that: include: A plateau simulation cabin (17) is used as a structural support; a negative pressure device connected to the plateau simulation cabin (17) and used to provide a negative pressure environment for the plateau simulation cabin (17) to simulate a plateau environment; A regulating system (2) is provided in the plateau simulation cabin (17) and is used to regulate the temperature and / or humidity in the plateau simulation cabin (17); An anechoic chamber (18) is provided in the plateau simulation cabin (17) and is used to provide a low-noise environment; A pressurized simulation cabin (19) is arranged in the anechoic chamber (18) and is used for simulating 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 on the pressurized simulation cabin (19) and / or on the exhaust pipeline; an acquisition system connected to the data processing system and used to acquire test data of components of the boosting 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); A 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 muffler element (8) arranged in the boost pipe, a second muffler element (15) arranged in the exhaust pipe, an electric regulating valve (14) arranged in the exhaust pipe, 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 pipe, a temperature sensor (6) arranged in the boost pipe, a first flow sensor (7) arranged in the boost pipe, a second flow sensor (11) arranged in the exhaust pipe, a second pressure sensor (12) arranged in the exhaust pipe, and a third pressure sensor (13) arranged in the exhaust pipe, wherein 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 according to claim 2, wherein the testing method comprises: S1. Build a plateau environment simulation model, import component characteristic curves, environmental parameters, and target parameters into the data processing system, and establish a criterion for determining the test results of the test object; 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, and 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 regulating system (2); S3. The pressurized simulation chamber (19) starts pressurizing, 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 associated parameters are mined to analyze the causes and generate an analysis report. S5. Fit relevant parameters based on data regression analysis methods, establish a prediction model, predict component performance under preset working conditions, and generate a test result analysis report.

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

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: replacing the first silencer element (8) with a straight pipe before step S3.

7. The testing method according to claim 5, characterized in that: If the test object is a safety valve (10), step S3 further 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 the 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) closes.

8. The testing method according to claim 5, wherein: 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 further 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, wherein: 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 comparing 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 amount 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 muffler at the exhaust end, the method further includes step S6: replacing the second muffler element (15) with the muffler 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 exhaust process obtained in the performance test of the electric control valve (14) to obtain the muffler volume and pipe loss of the muffler to be tested.

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