Building Envelope System Wind and Rain Simulation Test Device and Wind, Rain, and Wind-Rain Comprehensive Simulation Test Methods

Abstract

The present invention discloses a wind and rain simulation test device for a building envelope system, which includes a wind source supply system, an artificial rainfall simulation system and a test bench. The wind source supply system is located on one side of the test bench, the artificial rainfall simulation system is located above the test bench, a specimen installation platform is installed on the test bench, and a leakage rainfall collector is arranged below the specimen installation platform. The present invention also provides methods for wind, rain and combined wind and rain simulation tests of the building envelope system. This test device can install the specimen to be tested on the specimen installation platform, simulate natural wind through the wind source supply system, simulate rainfall through the artificial rainfall simulation system, and the leakage rainfall collector can collect the rainfall leaked from the specimen to be tested. The wind simulation test method is used to detect the wind resistance performance of the specimen to be tested, the rain simulation test method is used to detect the rain resistance performance of the specimen to be tested, and the combined wind and rain simulation test method is used to detect the performance of the specimen to be tested in a wind-driven rain environment.

Description

Technical Field

[0001] The present invention relates to the technical field of building envelope system detection, and particularly to a wind and rain simulation test device and method. Background Art

[0002] With the rapid development of modern architecture, the roofs of more and more large public buildings are constructed with new roofing systems. To meet the requirements of indoor comfort and energy conservation, a large number of functional auxiliary structures such as ventilation skylights, ventilators, and louvers are used in the building envelope system. According to the ventilation or daylighting design requirements of the building, considering factors such as local climate conditions, dominant wind direction, building height, inlet and exhaust air temperature difference, ventilation volume, and indoor production process characteristics, the forms of these functional auxiliary structures are determined. Since the current detection methods for the structural safety performance of the anti-wind and rain of functional auxiliary structures such as ventilation skylights, ventilators, and louvers are limited, mainly based on theoretical calculations, and lack actual measured anti-wind and rain performance parameters, which directly affect the safety and structural life of the building itself. Therefore, it is necessary to provide a test device and method that can simulate natural wind and rainfall to solve this problem. Summary of the Invention

[0003] An object of the present invention is to solve at least one of the technical problems existing in the prior art, and provide a wind and rain simulation test device for a building envelope system and a wind, rain, and wind-rain comprehensive simulation test method, which can effectively simulate natural wind and rainfall to detect the wind and rain resistance performance of the building envelope system.

[0004] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0005] A wind and rain simulation test device for a building envelope system includes a wind source supply system, an artificial simulated rainfall system, and a test bench. The wind source supply system is located on one side of the test bench, the artificial simulated rainfall system is located above the test bench, a specimen installation platform is installed on the test bench, and a leakage rainfall collector is arranged below the specimen installation platform.

[0006] As an improvement of the above technical solution, the outlet of the wind source supply system is provided with a flow guide member for adjusting the wind direction.

[0007] As an improvement of the above technical solution, the specimen installation platform is rotatably adjustable relative to the test bench to adjust the included angle between the specimen to be tested and the flow guide member.

[0008] As an improvement of the above technical solution, the test bench is rotatably connected with an angle adjustment mechanism, and the test bench can horizontally rotate relative to the angle adjustment mechanism.

[0009] As an improvement of the above technical solution, the artificial simulated rainfall system includes a plurality of uniformly distributed spray heads.

[0010] As an improvement to the above technical solution, it further includes a measurement system and a control system. The measurement system includes a displacement measurement unit and a stress measurement unit. The displacement measurement unit and the stress measurement unit are used to connect the specimen to be tested and are electrically connected to the control system.

[0011] As an improvement to the above technical solution, the measurement system further includes at least two anemometers, which are distributed at the outlet of the air source supply system and around the specimen installation platform and are electrically connected to the control system.

[0012] A wind simulation test method for a building envelope system includes the following steps: providing an air source supply system, a test bench, a specimen installation platform and a specimen to be tested, and the specimen installation platform is rotatably installed on the test bench; installing the specimen to be tested on the specimen installation platform, placing the air source supply system on one side of the test bench with the outlet facing the specimen to be tested, and adjusting the angle between the specimen to be tested and the outlet direction of the air source supply system; turning on the air source supply system and adjusting the output wind speed of the air source supply system; collecting the wind speed at the outlet of the air source supply system and inspecting the wind speed at different positions of the specimen to be tested, and detecting the displacement and stress values of the specimen to be tested.

[0013] A rain simulation test method for a building envelope system includes the following steps: providing an artificial rain simulation system, a test bench, a specimen installation platform, a leakage rain collector and a specimen to be tested, the specimen installation platform is rotatably installed on the test bench, and the leakage rain collector is arranged below the specimen installation platform; installing the specimen to be tested on the specimen installation platform, forming a closed space among the specimen installation platform, the specimen to be tested and the leakage rain collector, and placing the artificial rain simulation system above the specimen to be tested; turning on the artificial rain simulation system and adjusting the rainfall intensity of the artificial rain simulation system; collecting the leakage rain volume in the leakage rain collector.

[0014] A comprehensive wind and rain simulation test method for a building envelope system includes the following steps: providing an air source supply system, an artificial rain simulation system, a test bench, a specimen installation platform, a leakage rain collector and a specimen to be tested, the specimen installation platform is rotatably installed on the test bench, and the leakage rain collector is arranged below the specimen installation platform; installing the specimen to be tested on the specimen installation platform, placing the air source supply system on one side of the test bench with the outlet facing the specimen to be tested, placing the artificial rain simulation system above the specimen to be tested, adjusting the angle between the specimen to be tested and the outlet direction of the air source supply system, and forming a closed space among the specimen installation platform, the specimen to be tested and the leakage rain collector; turning on the air source supply system and the artificial rain simulation system, and adjusting the output wind speed of the air source supply system and the rainfall intensity of the artificial rain simulation system; collecting the leakage rain volume in the leakage rain collector, the wind speed at the outlet of the air source supply system and inspecting the wind speed at different positions of the specimen to be tested, and detecting the displacement and stress values of the specimen to be tested.

[0015] The beneficial effects of the present invention are as follows:

[0016] This test device can install the test specimen on the specimen installation platform, simulate natural wind through the air source supply system, simulate rainfall through the artificial rainfall simulation system, the leakage rainfall collector can collect the rainfall leaked from the test specimen, use the wind simulation test method to detect the wind resistance performance of the test specimen, use the rain simulation test method to detect the rain resistance performance of the test specimen, and use the comprehensive wind and rain simulation test method to detect the performance of the test specimen in the wind-driven rain environment. Brief Description of the Drawings

[0017] The present invention will be further described below in conjunction with the drawings and specific embodiments, where:

[0018] Figure 1 is the top view of the embodiment of the present invention;

[0019] Figure 2 is the front view of the embodiment of the present invention. Detailed Embodiments

[0020] See Figure 1 and Figure 2 The present invention provides a wind and rain simulation test device for a building envelope system, including an air source supply system 1, an artificial rainfall simulation system 2, a test bench 3, a measurement system and a control system. Among them, the air source supply system 1 is located on one side of the test bench 3, and the artificial rainfall simulation system 2 is located above the test bench 3.

[0021] As Figure 1 shown, the outlet of the air source supply system 1 is provided with a flow guide member 6 for adjusting the wind direction. A specimen installation platform 4 is installed on the test bench 3. The specimen installation platform 4 is rotatably adjustable relative to the test bench 3 to adjust the included angle between the test specimen and the flow guide member 6. The test bench 3 is rotatably connected to an angle adjustment mechanism 7. The test bench 3 can rotate horizontally relative to the angle adjustment mechanism 7. In this embodiment, the air source supply system 1 is a fan, which can adjust the magnitude of the wind speed. The flow guide member 6 is specifically a hollow flow guide cover, and the air flow will be evenly divided according to the streamline of the flow guide cover to achieve the effect of simulating natural wind. The angle adjustment mechanism 7 is specifically a rotating table.

[0022] As Figure 2 shown, the artificial rainfall simulation system 2 includes a plurality of spray heads 21. The plurality of spray heads 21 are evenly distributed and connected through pipelines. A flow regulator is also installed on the pipeline, which can adjust the flow rate of the spray heads to achieve the effect of simulating rainfall.

[0023] Among them, a leakage rainfall collector 5 is arranged below the test piece installation platform 4. The test piece installation platform 4 is specifically an installation frame, and its outer periphery can be hermetically connected to the test piece to be tested. After the angle between the test piece to be tested and the flow guiding member 6 is adjusted, the leakage rainfall collector 5 can be hermetically connected to the test piece installation platform 4 through a waterproof coiled material, so that a sealed space is formed among the test piece installation platform 4, the test piece to be tested, and the leakage rainfall collector 5, and the leakage rainfall collector 5 can collect the rainfall leaked from the test piece to be tested.

[0024] In addition, the measurement system includes a displacement measurement unit, a stress measurement unit, and at least two anemometers 8. The displacement measurement unit and the stress measurement unit are used to connect the test piece to be tested and are electrically connected to the control system, and can respectively detect the displacement amount and stress value of the test piece to be tested. The anemometers 8 are distributed at the outlet of the air source supply system 1 and around the test piece installation platform 4, and are electrically connected to the control system. The anemometers 8 can collect the outlet wind speed of the air source supply system and inspect the wind speeds at different positions of the test piece to be tested.

[0025] The present invention also provides a wind simulation test method for a building envelope system, including the following steps:

[0026] Provide an air source supply system 1, a test bench 3, a test piece installation platform 4, and a test piece to be tested. The test piece installation platform 4 is rotatably installed on the test bench 3;

[0027] Install the test piece to be tested on the test piece installation platform 4, place the air source supply system 1 on one side of the test bench 3 with its outlet facing the test piece to be tested, and adjust the angle between the test piece to be tested and the outlet direction of the air source supply system 1;

[0028] Turn on the air source supply system 1 and adjust the output wind speed of the air source supply system 1;

[0029] Collect the outlet wind speed of the air source supply system 1 and inspect the wind speeds at different positions of the test piece to be tested, and detect the displacement amount and stress value of the test piece to be tested.

[0030] This test method can detect the performance of the wind uplift bearing capacity of the test piece to be tested under wind loads in different directions and speeds, and can also simulate the installation conditions of the test piece to be tested in actual projects and the most unfavorable wind direction angles in wind tunnel tests.

[0031] The present invention also provides a rain simulation test method for a building envelope system, including the following steps:

[0032] Provide an artificial rainfall simulation system 2, a test bench 3, a test piece installation platform 4, a leakage rainfall collector 5, and a test piece to be tested. The test piece installation platform 4 is rotatably installed on the test bench 3, and the leakage rainfall collector 5 is arranged below the test piece installation platform 4;

[0033] Install the test specimen on the specimen installation platform 4. A sealed space is formed among the specimen installation platform 4, the test specimen, and the leakage rainfall collector 5. Place the artificial rainfall simulation system 2 above the test specimen.

[0034] Turn on the artificial rainfall simulation system 2 and adjust the rainfall intensity of the artificial rainfall simulation system 2.

[0035] Collect the leakage rainfall in the leakage rainfall collector 5.

[0036] This test method can detect the leak-proof performance of the test specimen.

[0037] The present invention also provides a comprehensive wind and rain simulation test method for a building envelope system, including the following steps:

[0038] Provide a wind source supply system 1, an artificial rainfall simulation system 2, a test bench 3, a specimen installation platform 4, a leakage rainfall collector 5, and a test specimen. The specimen installation platform 4 is rotatably installed on the test bench 3, and the leakage rainfall collector 5 is arranged below the specimen installation platform 4.

[0039] Install the test specimen on the specimen installation platform 4. Place the wind source supply system 1 on one side of the test bench 3 with its outlet facing the test specimen, and place the artificial rainfall simulation system 2 above the test specimen. Adjust the angle between the test specimen and the outlet direction of the wind source supply system 1. A sealed space is formed among the specimen installation platform 4, the test specimen, and the leakage rainfall collector 5.

[0040] Turn on the wind source supply system 1 and the artificial rainfall simulation system 2. Adjust the output wind speed of the wind source supply system 1 and the rainfall intensity of the artificial rainfall simulation system 2. Collect the leakage rainfall in the leakage rainfall collector 5, the outlet wind speed of the wind source supply system 1, and inspect the wind speeds at different positions of the test specimen, and detect the displacement and stress values of the test specimen.

[0041] This test method can detect various performances of the test specimen in a wind-driven rain environment, specifically including the performance of wind uplift resistance and leak-proof performance, and can also simulate the installation conditions of the test specimen in actual projects and the most unfavorable wind direction angles in wind tunnel tests.

[0042] As mentioned above, it is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments. As long as it achieves the technical effects of the present invention by any identical or similar means, it should fall within the protection scope of the present invention.

Claims

1. An apparatus for wind and rain simulation test of a building envelope system, characterized in that, It includes an air source supply system, an artificial rainfall simulation system, a test bench, a measurement system and a control system. The air source supply system is located on one side of the test bench. The artificial rainfall simulation system is located above the test bench. A specimen installation platform is installed on the test bench. A leakage rainfall collector is arranged below the specimen installation platform. The outlet of the air source supply system is provided with a flow guiding member for adjusting the wind direction. The specimen installation platform is rotatably adjustable relative to the test bench to adjust the included angle between the specimen to be tested and the flow guiding member. The test bench is rotatably connected with an angle adjustment mechanism, and the test bench can horizontally rotate relative to the angle adjustment mechanism. The measurement system includes a displacement measurement unit and a stress measurement unit. The displacement measurement unit and the stress measurement unit are used to connect the specimen to be tested and are electrically connected to the control system.

2. The apparatus for wind and rain simulation test of a building envelope system according to claim 1, characterized in that, The artificial rainfall simulation system includes a number of uniformly distributed spray heads.

3. The apparatus for wind and rain simulation test of a building envelope system according to claim 1 or 2, characterized in that, The measurement system further includes at least two anemometers, which are distributed around the outlet of the air source supply system and the specimen installation platform and are electrically connected to the control system.

4. A method for wind simulation test of a building envelope system, characterized in that, Applying the building envelope system wind and rain simulation test device according to any one of claims 1 to 3, includes the following steps: Provide an air source supply system, a test bench, a specimen installation platform and a specimen to be tested. The specimen installation platform is rotatably installed on the test bench; Install the specimen to be tested on the specimen installation platform, place the air source supply system on one side of the test bench with the outlet facing the specimen to be tested, and adjust the included angle between the specimen to be tested and the outlet direction of the air source supply system; Turn on the air source supply system and adjust the output wind speed of the air source supply system; Collect the wind speed at the outlet of the air source supply system and inspect the wind speed at different positions of the specimen to be tested, and detect the displacement amount and stress value of the specimen to be tested.

5. A method for rain simulation test of a building envelope system, characterized in that, Applying the building envelope system wind and rain simulation test device according to any one of claims 1 to 3, includes the following steps: Provide an artificial rainfall simulation system, a test bench, a specimen installation platform, a leakage rainfall collector and a specimen to be tested. The specimen installation platform is rotatably installed on the test bench, and the leakage rainfall collector is arranged below the specimen installation platform; Install the specimen to be tested on the specimen installation platform. A sealed space is formed among the specimen installation platform, the specimen to be tested and the leakage rainfall collector. Place the artificial rainfall simulation system above the specimen to be tested; Turn on the artificial rainfall simulation system and adjust the rainfall intensity of the artificial rainfall simulation system; Collect the leakage rainfall in the leakage rainfall collector.

6. A method for comprehensive wind and rain simulation test of a building envelope system, characterized in that, Applying the building envelope system wind and rain simulation test device according to any one of claims 1 to 3, includes the following steps: Provide an air source supply system, an artificial rainfall simulation system, a test bench, a specimen installation platform, a leakage rainfall collector and a specimen to be tested. The specimen installation platform is rotatably installed on the test bench, and the leakage rainfall collector is arranged below the specimen installation platform; Install the specimen to be tested on the specimen installation platform, place the air source supply system on one side of the test bench with the outlet facing the specimen to be tested, place the artificial rainfall simulation system above the specimen to be tested, adjust the included angle between the specimen to be tested and the outlet direction of the air source supply system, and a sealed space is formed among the specimen installation platform, the specimen to be tested and the leakage rainfall collector; Turn on the air source supply system and the artificial rainfall simulation system, and adjust the output wind speed of the air source supply system and the rainfall intensity of the artificial rainfall simulation system; Collect the leakage rainfall in the leakage rainfall collector, the outlet wind speed of the air source supply system, and the wind speeds at different positions of the test piece to be inspected, and detect the displacement and stress values of the test piece to be inspected.

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