Wind tunnel rainfall environment simulation device

Abstract

The invention discloses a wind tunnel rainfall environment simulation device. The wind tunnel rainfall environment simulation device comprises a spraying assembly and a connecting mechanism used for arranging the spraying assembly in a wind tunnel. Wherein the spraying assembly comprises a spraying frame body, universal wheels arranged at the bottom of the spraying frame body and at least one spraying pipe set detachably arranged in the spraying frame body, and the wind tunnel rainfall environment simulation device moves into a wind tunnel opening through the universal wheels and sprays liquid through the spraying pipe set to simulate rainfall. According to the technical scheme, rapid movement and installation of the spraying pipe set are achieved, the wind tunnel test preparation time is shortened, the wind tunnel test efficiency is improved, meanwhile, the connecting mechanism can prevent the simulation device from moving under the influence of airflow, the stability of rainfall environment simulation is enhanced, and finally the effectiveness of test data is improved.

Description

Technical Field

[0001] This application relates to the field of wind tunnel experimental technology, specifically to a wind tunnel rainfall environment simulation device. Background Technology

[0002] Wind tunnel testing is an aerodynamic experimental method that involves placing models of aircraft or other objects in a wind tunnel to study gas flow and its interaction with the models in order to understand the aerodynamic characteristics of actual aircraft or other objects. During wind tunnel testing, to simulate real-world environmental conditions, natural rainfall is simulated within the wind tunnel environment to study the performance of the test specimens under rainfall conditions.

[0003] Currently, when wind tunnel tests are required to simulate rainfall environments, a rainfall simulation device needs to be installed at the wind tunnel nozzle to simulate rainfall conditions. When conducting conventional aerodynamic tests in a wind tunnel without rainfall, the rainfall simulation device must be removed to prevent it from affecting the airflow environment. However, existing rainfall simulation devices are large in size and the removal process is complex, resulting in excessively long wind tunnel test preparation times and impacting the efficiency of wind tunnel operation.

[0004] Therefore, there is an urgent need in this field for a solution that can be quickly installed and disassembled to simulate a wind tunnel rainfall environment in order to solve the above problems. Summary of the Invention

[0005] In view of this, this application proposes a wind tunnel rainfall environment simulation device, which can be quickly installed and disassembled in a wind tunnel. The wind tunnel rainfall environment simulation device includes: a spray assembly and a connecting mechanism for installing the spray assembly in the wind tunnel; wherein, The spray assembly includes: a spray frame, casters located at the bottom of the spray frame, and at least one detachable spray pipe assembly located in the spray frame. The wind tunnel rainfall environment simulation device uses the casters to move to the wind tunnel entrance and uses the spray pipe assembly to spray liquid to simulate rainfall.

[0006] Further preferred, The wind tunnel opening is equipped with wind tunnel shell stiffening plates; The connecting mechanism includes a hinged connecting frame, one end of which is connected to the wind tunnel shell stiffener plate, and the other end is connected to the spray frame body. The spray frame body is installed in the wind tunnel shell stiffener plate through the hinged connecting frame.

[0007] More preferably, the connecting mechanism further includes a handwheel assembly, which is disposed in the spray frame and the spray frame is also installed in the wind tunnel shell stiffener via the handwheel assembly.

[0008] Further optimization: The hinged connection frame includes: a first hinge and a hinge frame body, wherein the hinge frame body and the wind tunnel shell stiffener are hinged through the first hinge; The handwheel assembly includes a second hinge, a handwheel, and a pressure plate. The handwheel and the wind tunnel housing stiffener are hinged by the second hinge, and the pressure plate and the wind tunnel housing stiffener are pressed by the handwheel.

[0009] Further optimization: The handwheel assembly secures the wind tunnel rainfall environment simulation device in the wind tunnel in a first direction; The hinged connecting frame fixes the wind tunnel rainfall environment simulation device in the wind tunnel in the second direction.

[0010] More preferably, the hinge frame includes a rectangular frame and diagonal beams disposed diagonally within the rectangular frame.

[0011] Preferably, the spray frame has a spray pipe assembly placement port for detachable installation of the spray pipe assembly.

[0012] More preferably, the spray frame further includes: a portal frame and at least one vertical support disposed under the crossbeam of the portal frame; Both the bracket and the columns in the portal frame are provided with openings for placing the spray pipe assembly, so that the spray pipe assembly can be detachably installed.

[0013] Preferably, the spray pipe assembly includes: a pipe and nozzles disposed on the pipe, the pipe including an inlet end and an outlet end.

[0014] More preferably, the pipeline includes multiple sub-sections, which are connected by flanges.

[0015] The technical solution provided in this application includes a spray assembly and a connecting mechanism. The spray pipe group in the spray assembly is detachably installed on the spray frame. Liquid is sprayed through the spray pipe group in the spray assembly to simulate rainfall. The spray assembly is moved to the wind tunnel entrance by casters and the spray assembly is set at the wind tunnel entrance by the connecting mechanism. This realizes the rapid movement and installation of the spray pipe group, reduces the wind tunnel test preparation time, and improves the efficiency of wind tunnel tests. At the same time, the connecting mechanism can also prevent the simulation device from moving under the influence of airflow, enhance the stability of the rainfall environment simulation, and ultimately improve the validity of the test data.

[0016] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application, and the illustrative embodiments and descriptions thereof are used to explain this application. In the drawings: Figure 1 This is a schematic diagram of the structure of the wind tunnel rainfall environment simulation device according to a preferred embodiment of this application; Figure 2 A schematic diagram of the wind tunnel rainfall environment simulation device according to a preferred embodiment of this application in the wind tunnel entrance; Figure 3 This is a schematic diagram of the connection node structure of the connection mechanism according to a preferred embodiment of this application; Figure 4 This is a schematic diagram of the structure of the hinged connecting frame according to a preferred embodiment of this application; Figure 5 This is a schematic diagram of the structure of the spray frame according to a preferred embodiment of this application; Figure 6 This is a schematic diagram of the structure of the spray pipe assembly according to a preferred embodiment of this application.

[0018] Attachment Number: 1-Sprinkler assembly; 11-Sprinkler frame; 111-Sprinkler pipe assembly placement port; 112-Gantry frame; 113-Bracket; 12-Sprinkler pipe assembly; 121-Pipe; 122-Nozzle; 13-Wheel caster; 2-Connecting mechanism; 21-Hinged connecting frame; 211-First hinge; 212-Hinge frame; 22-Handwheel assembly; 221-Second hinge; 222-Handwheel; 223-Pressure plate; 3-Wind tunnel shell stiffeners. Detailed Implementation

[0019] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] This application provides a wind tunnel rainfall environment simulation device, installed in a wind tunnel, for simulating rainfall environments. Figure 1As shown, the device includes a spray assembly 1 for simulating a rainfall environment and a connecting mechanism 2 for mounting the spray assembly 1 inside a wind tunnel. The spray assembly 1 includes a spray frame 11, casters 13 at the bottom of the spray frame 11, and at least one detachable spray pipe assembly 12 mounted within the spray frame 11. The entire device can be moved to a suitable installation position inside the wind tunnel using the casters 11, and uses the spray pipe assembly 12 to spray liquid to simulate rainfall. Finally, it is fixed in place inside the wind tunnel using the connecting mechanism 2. After the wind tunnel test is completed, the spray assembly 1 can be disassembled via the connecting mechanism 2, or only the spray pipe assembly 12 can be disassembled from the spray frame 11, ensuring that the remaining components are not located in front of the wind tunnel nozzles, thus preventing them from interfering with the wind tunnel test. This allows for rapid installation and disassembly of the spray pipe assembly.

[0021] There are multiple ways to configure the connecting mechanism 2, and in some application scenarios, such as... Figure 2 As shown, a wind tunnel shell stiffener 3 is usually installed inside the wind tunnel to form a support and protect the wind tunnel structure on the outside of the wind tunnel. The connecting mechanism 2 can use the wind tunnel shell stiffener 3 to install this device inside the wind tunnel.

[0022] In one implementation, such as Figure 3 As shown, the connecting mechanism 2 includes a hinged connecting frame 21. One end of the hinged connecting frame 21 is connected to the wind tunnel shell stiffener 3, and the other end is connected to the spray frame 11, thereby connecting the entire wind tunnel rainfall environment simulation device inside the wind tunnel opening. The hinged connecting frame 21 includes a first hinge 211 and a hinge frame 212. The first hinge 211 is located on both sides of the hinge frame 212 and may include ear plates, pins, connecting arms, and other structures. The ear plates are welded to the wind tunnel shell stiffener 3 and the spray frame 11, and the connecting arms are located in the hinge frame 212. The connecting arms and ear plates are connected by pins passing through them. In this method, although the ear plates cannot be removed from the wind tunnel shell stiffener 3 and the spray frame 11, as explained above, the components of the spray pipe assembly 12 and the windward side of the wind tunnel nozzle are still detachable. As long as the other components are not located in front of the nozzle, they will not affect the wind tunnel test, thus allowing for quick disassembly of the spray pipe assembly. Alternatively, the lug plate of the first hinge 211 can be detachably connected to the wind tunnel shell stiffener 3 and the spray frame 11 via bolts or other means. A connecting arm is disposed in the hinge frame 212, and a pin passes through the connecting arm and lug plate to achieve installation between the connecting arm and lug plate. This allows the hinge frame 212 and the spray frame 11 to be installed in the wind tunnel shell stiffener 3. In this method, the spray frame 11 can be completely removed from the wind tunnel. Neither of these methods will affect the conduct of other wind tunnel tests.

[0023] In a more preferred implementation, for example... Figure 3As shown, the connecting mechanism 2 further includes a handwheel assembly 22, which is disposed in the spray frame 11. The spray frame 11 is installed in the wind tunnel shell stiffener 3 via the handwheel assembly 22. The handwheel assembly 22 includes a second hinge 221, a handwheel 222, and a clamping plate 223. The second hinge 221 may also include an ear plate, a connecting arm, a pin, and other structures. Similar to the first hinge 211, the ear plate of the second hinge 221 is detachably or non-detachably connected to the wind tunnel shell stiffener 3 and the spray frame 11, respectively. The connecting arm is bolted to the handwheel 222. The clamping plate 223 is disposed in the handwheel 222 and is installed between the connecting arm and the ear plate via a pin. Simultaneously, rotating the handwheel 222 clamps the clamping plate 223 to the wind tunnel shell stiffener 3, further securing the installation of the spray frame 11 and the wind tunnel shell stiffener 3.

[0024] Based on the two embodiments described above, the handwheel assembly 22 is used to fix the wind tunnel rainfall environment simulation device in the wind tunnel in a first direction, and the hinged connecting frame 21 is used to fix the wind tunnel rainfall environment simulation device in the wind tunnel in a second direction. The first direction and the second direction can be two mutually perpendicular directions, so that the spray frame 11 and the hinged connecting frame 21 can be fixed in the wind tunnel from two mutually perpendicular directions.

[0025] Regarding the specific structure of the hinge frame 212, in one specific embodiment, such as Figure 4 As shown, the hinged frame 212 includes a rectangular frame and diagonal beams set at opposite corners within the rectangular frame to achieve the stability of the frame.

[0026] Regarding the specific structure of the spray frame 11, in one specific embodiment, such as Figure 5 As shown, the spray frame 11 also includes a portal frame 112 and at least one support 113 vertically disposed under the crossbeam of the portal frame 112. Both the support 113 and the columns in the portal frame 112 have spray pipe assembly placement openings 111 for detachably mounting spray pipe assemblies 12 within these openings. Of course, the portal frame 112 should not be positioned in front of the wind tunnel nozzles, and the support 113 can be detachably mounted under the portal frame 112 using bolts or similar means.

[0027] Regarding the specific structure of the spray pipe assembly 12, in one specific embodiment, such as Figure 6As shown, the sprinkler assembly 12 includes a pipe 121 and nozzles 122 mounted on the pipe 121. The pipe 121 has an inlet and an outlet at both ends, or both ends can be inlets, or one end can be an inlet while the other is blocked. Additionally, the nozzles 122 may be equipped with control valves to adjust the simulated rainfall intensity by opening and closing the valves. Furthermore, to accommodate wind tunnels of different widths, both the pipe 121 and the crossbeams of the portal frame 112 can include multiple sub-pipe sections, which are connected by flanges to adjust the overall length of the pipe 121 according to the width of the opening.

[0028] The technical solution provided in this application includes a spray assembly and a connecting mechanism. The spray pipe group in the spray assembly is detachably installed on the spray frame. Liquid is sprayed through the spray pipe group in the spray assembly to simulate rainfall. The spray assembly is moved to the wind tunnel entrance by casters and the spray assembly is set at the wind tunnel entrance by the connecting mechanism. This realizes the rapid movement and installation of the spray pipe group, reduces the wind tunnel test preparation time, and improves the efficiency of wind tunnel tests. At the same time, the connecting mechanism can also prevent the simulation device from moving under the influence of airflow, enhance the stability of the rainfall environment simulation, and ultimately improve the validity of the test data.

[0029] The preferred embodiments of this application have been described in detail above. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.

[0030] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not describe the various possible combinations separately.

[0031] Furthermore, various different embodiments of this application can be combined in any way, as long as they do not violate the spirit of this application, they should also be regarded as the content disclosed by this invention.

Claims

1. A wind tunnel rainfall environment simulation device, characterized in that, The device includes: a spray assembly (1) and a connecting mechanism (2) for mounting the spray assembly (1) inside the wind tunnel; wherein, The spray assembly (1) includes: a spray frame (11), casters (13) disposed at the bottom of the spray frame (11), and at least one detachable spray pipe assembly (12) disposed in the spray frame (11). The wind tunnel rainfall environment simulation device uses the casters (13) to move to the wind tunnel opening and uses the spray pipe assembly (12) to spray liquid to simulate rainfall.

2. The wind tunnel rainfall environment simulation device according to claim 1, characterized in that: The wind tunnel opening is equipped with a wind tunnel shell stiffening plate (3); The connecting mechanism (2) includes: a hinged connecting frame (21), one end of which is connected to the wind tunnel shell stiffener (3) and the other end is connected to the spray frame (11), and the spray frame (11) is installed in the wind tunnel shell stiffener (3) through the hinged connecting frame (21).

3. The wind tunnel rainfall environment simulation device according to claim 2, characterized in that, The connecting mechanism (2) further includes a handwheel assembly (22), which is disposed in the spray frame (11), and the spray frame (11) is also installed in the wind tunnel shell stiffener (3) via the handwheel assembly (22).

4. The wind tunnel rainfall environment simulation device according to claim 3, characterized in that: The hinged connecting frame (21) includes: a first hinge (211) and a hinge frame (212), and the hinge frame (212) and the wind tunnel shell stiffener (3) are hinged through the first hinge (211). The handwheel assembly (22) includes: a second hinge (221), a handwheel (222) and a clamping plate (223), the handwheel (222) and the wind tunnel shell stiffener (3) are hinged by the second hinge (221), and the clamping plate (223) and the wind tunnel shell stiffener (3) are clamped by the handwheel (222).

5. The wind tunnel rainfall environment simulation device according to claim 3, characterized in that: The handwheel assembly (22) fixes the wind tunnel rainfall environment simulation device in the wind tunnel in a first direction; The hinged connecting frame (21) fixes the wind tunnel rainfall environment simulation device in the wind tunnel in the second direction.

6. The wind tunnel rainfall environment simulation device according to claim 4, characterized in that, The hinge frame (212) includes a rectangular frame and diagonal beams disposed within the rectangular frame.

7. The wind tunnel rainfall environment simulation device according to claim 1, characterized in that, The spray frame (11) has a spray pipe assembly placement port (111) for the detachable installation of the spray pipe assembly (12).

8. The wind tunnel rainfall environment simulation device according to claim 7, characterized in that, The spray frame (11) further includes: a portal frame (112) and at least one support (113) vertically arranged under the crossbeam of the portal frame (112). The columns in both the bracket (113) and the portal frame (112) are provided with spray pipe assembly placement ports (111) for detachable installation of the spray pipe assembly (12).

9. The wind tunnel rainfall environment simulation device according to claim 1, characterized in that, The spray pipe assembly (12) includes: a pipe (121) and a nozzle (122) disposed on the pipe (121), the pipe (121) including an inlet end and an outlet end.

10. The wind tunnel rainfall environment simulation device according to claim 9, characterized in that, The pipeline (121) includes multiple sub-sections, which are connected by flanges.

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