Gas flow testing device

Abstract

The utility model provides a gas flow testing device. The gas flow testing device comprises a gas flow monitoring structure and a clamping structure which are installed on a workbench. The clamping structure is used for providing a supporting tool for a to-be-detected workpiece and clamping and fixing the to-be-detected workpiece; the supporting tool is connected and communicated with a to-be-detected workpiece, an air inlet hole is formed in the supporting tool and used for being communicated with the output end of the airflow monitoring structure, and external airflow enters the supporting tool after passing through the airflow monitoring structure and is conveyed to the to-be-detected workpiece; the device is simple in structure, wide in application range, convenient to use and operate and capable of meeting monitoring use of various types of parts, and the working efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to a ventilation flow rate testing device, and more specifically, to a gas flow rate testing device. Background Technology

[0002] In aero-engines and gas turbines, components such as flame tubes, vortex generators, and blades require airflow testing to ensure proper tooling conditions during combustion. To ensure tight assembly for subsequent applications, these components cannot be fixed using their original assembly methods during testing; alternative fitting methods must be employed. This results in current flow testing devices being largely custom-designed, dedicated experimental equipment, leading to high costs and limited versatility, making it impossible to test multiple types of components with a single device. Furthermore, the operation is cumbersome, disassembly is difficult, and the workload and time consumption are significant when testing the flow of batches of components, requiring improvement. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the technical problem to be solved by this utility model is to propose a gas flow testing device with a simple structure, which can meet the monitoring needs of various types of parts, has a wide range of applications, is easy to use and operate, and can improve work efficiency.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This utility model provides a gas flow testing device, including an airflow monitoring structure and a clamping structure installed on a workbench; the clamping structure is used to provide a support fixture for the workpiece to be tested and to clamp and fix it; the support fixture is connected to the workpiece to be tested, and the support fixture is provided with an air inlet hole for connecting with the output end of the airflow monitoring structure; the external airflow enters the support fixture after passing through the airflow monitoring structure and is delivered to the workpiece to be tested.

[0006] In a preferred embodiment of this invention, the clamping structure includes a support plate, a clamping assembly mounted on the top surface of the support plate, the clamping assembly being used to position and limit the bottom of the support fixture; a vertical rod is mounted on the top surface of the support plate, a cantilever is mounted on the vertical rod, the cantilever extends to one side above the center of the support plate, and a clamping fixture is mounted at the end of the cantilever, the clamping fixture being used to clamp and fix the workpiece to be tested placed on the support fixture.

[0007] In a preferred embodiment of this invention, the top surface of the support plate is provided with a plurality of first threaded holes arranged in a rectangular array, and the bottom of the upright and the clamping assembly are fixed to the top surface of the support plate by bolts; the upright is provided with a plurality of through holes penetrating the two opposite side walls, and the through holes are arranged in groups of one or two evenly spaced along the length of the upright; the cantilever is fixed to the upright by bolts passing through the through holes.

[0008] In a preferred embodiment of this invention, the clamping assembly includes at least three limiting blocks, each limiting block having an L-shaped structure. The horizontal portion of the limiting block is provided with a strip-shaped hole extending along the length direction, the length of which is not less than the distance between two adjacent first threaded holes. The limiting blocks are fixed to the top surface of the support plate by bolts passing through the strip-shaped hole and the first threaded hole. The upright portions of the multiple limiting blocks form a clamping portion that is adapted to the bottom of the support fixture.

[0009] In a preferred embodiment of this invention, the air outlet of the support fixture is located on the top surface of the support fixture, and the air inlet of the workpiece to be tested is located on the bottom surface of the workpiece to be tested; a limiting groove adapted to the shape of the bottom of the workpiece to be tested is provided on the outer side of the air outlet of the support fixture, and the bottom of the workpiece to be tested is appropriately placed in the limiting groove, so that the two are internally connected; a sealing gasket is provided at the connection between the workpiece to be tested and the support fixture; a clamping fixture is used to clamp and apply force to the workpiece to be tested, and the sealing gasket is squeezed and deformed to seal the connection.

[0010] In a preferred embodiment of this invention, the airflow monitoring structure includes a flow valve, a pressure gauge, a flow meter, and a thermometer installed sequentially on the delivery pipe; the input end of the delivery pipe is connected to external compressed gas; the output end of the delivery pipe is connected to a gas delivery hose, and the end of the gas delivery hose is fitted with a pipe connector adapted to the air inlet of the support fixture.

[0011] In a preferred embodiment of this utility model, the workbench panel has an opening, and a support frame is provided below the opening, which is fixed to the bottom surface of the panel; the main component of the airflow monitoring structure is placed on the support frame, and the control component and display component of the airflow monitoring structure extend out of the top of the opening and are located above the top surface of the panel.

[0012] In a preferred embodiment of this utility model, a cover is installed at the opening, and the cover includes two spliced ​​cover plates; a latch is provided on one side of the spliced ​​part of the cover plates, and the latches of the two cover plates are correspondingly set to form multiple holes for the parts to pass through.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model provides a gas flow testing device, including an airflow monitoring structure and a clamping structure mounted on a workbench; the clamping structure is used to provide support fixtures for the workpiece to be tested and to clamp and fix it, providing stable and secure placement conditions for testing; the overall structure is simple and the cost is low; different workpieces can be tested by simply changing the support fixtures, thus expanding the scope of application and reducing the overall cost.

[0015] The support fixture is connected to the workpiece under test. The support fixture has an air inlet for connecting to the output end of the airflow monitoring structure. External airflow enters the support fixture after passing through the airflow monitoring structure and is delivered to the workpiece under test. The support fixture acts as a gas flow transfer component, making the airflow smoother for accurate detection. The airflow monitoring structure can monitor and display various data such as airflow velocity, air pressure, and temperature for unified aggregation and processing to obtain more accurate test data. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a gas flow testing device provided in a specific embodiment of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the clamping structure provided in a specific embodiment of the present utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the support fixture provided in a specific embodiment of this utility model.

[0019] In the picture:

[0020] 100. Workbench; 200. Airflow monitoring structure; 210. Flow valve; 220. Pressure gauge; 230. Flow meter; 240. Thermometer; 250. Delivery pipe; 260. Gas delivery hose; 270. Pipe fitting;

[0021] 300. Clamping structure; 310. Support fixture; 311. Air inlet; 312. Limiting groove; 313. Sealing gasket; 320. Support plate; 321. First threaded hole; 330. Clamping assembly; 331. Limiting block; 332. Strip hole; 340. Upright rod; 341. Through hole; 350. Cantilever; 360. Clamping fixture;

[0022] 400. The workpiece to be tested. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figures 1 to 3 As shown in the figure, a gas flow testing device disclosed in a specific embodiment of the present invention includes an airflow monitoring structure 200 and a clamping structure 300 installed on a workbench 100; the clamping structure 300 is used to provide a support fixture 310 for the workpiece 400 to be tested and to clamp and fix it; the support fixture 310 is connected to the workpiece 400 to be tested, and the support fixture 310 is provided with an air inlet 311 for communicating with the output end of the airflow monitoring structure 200. The external airflow enters the support fixture after passing through the airflow monitoring structure and is delivered to the workpiece to be tested.

[0025] The aforementioned gas flow testing device has a clamping structure that provides a supporting fixture for the workpiece to be tested and clamps and fixes it, providing stable and secure placement conditions for testing. The overall structure is simple and the cost is low. It can meet the testing needs of different workpieces by simply changing the supporting fixture, thus expanding the scope of application and reducing the overall cost.

[0026] The supporting fixture, which acts as a gas flow transfer component, makes the airflow smoother for accurate detection. The airflow monitoring structure can monitor and display various data such as airflow velocity, air pressure, and temperature, so as to collect and process them in a unified manner to obtain more accurate test data.

[0027] Furthermore, such as Figure 2 As shown, the clamping structure 300 includes a support plate 320, on the top surface of which a clamping assembly 330 is mounted. The clamping assembly is used to position and limit the bottom of the support fixture. A vertical rod 340 is mounted on the top surface of the support plate 320, and a cantilever 350 is mounted on the vertical rod 340. The cantilever extends to one side above the center of the support plate, and a clamping fixture 360 ​​is mounted at the end of the cantilever 350. The clamping fixture is used to clamp and fix the workpiece to be tested placed on the support fixture. The whole structure is a detachable structure, and the components are relatively simple, which is convenient for processing and production, and the overall cost is low. Moreover, it uses the clamping fixture as the main force-applying component, which is simple to operate and easy to use. It should be noted that the clamping fixture used is a push-pull type clamping fixture, which can be directly purchased and used on the market, and will not be described in detail.

[0028] Furthermore, the top surface of the support plate 320 is provided with a plurality of first threaded holes 321 arranged in a rectangular array. The bottom of the upright 340 and the clamping assembly 330 are both fixed to the top surface of the support plate 320 by bolts. The setting of the first threaded holes allows the entire top surface of the support plate to be used as a part for installation and connection, which can facilitate the adjustment of the position of the clamping assembly and better meet the placement and fixing of different support fixtures.

[0029] The upright 340 has multiple through holes 341 penetrating the two opposite side walls. The through holes are arranged in groups of one or two and are evenly spaced along the length of the upright. The cantilever 350 is fixed to the upright 340 by bolts passing through the through holes 341. This structure allows the height of the cantilever to be adjusted, which means that the height of the clamping fixture can be adjusted. This allows for better adaptation to the use of support fixtures with different heights for different workpieces, thereby satisfying the clamping and pressing of different workpieces.

[0030] Furthermore, the bottom end of the clamping rod of the clamping fixture is provided with a second threaded hole for installing a clamping bolt. The extension length of the clamping bolt can be adjusted to further adapt to different workpieces to be tested, and can be used as a fine-tuning part to further enhance the overall clamping effect.

[0031] Furthermore, the clamping assembly 330 includes at least three limiting blocks 331, which are L-shaped. The horizontal portion of the limiting block 331 is provided with a strip-shaped hole 332 extending along the length direction. The length of the strip-shaped hole is not less than the distance between two adjacent first threaded holes. The limiting block is fixed to the top surface of the support plate by bolts passing through the strip-shaped hole and the first threaded hole. The upright portions of the multiple limiting blocks 331 form a clamping portion that is adapted to the bottom of the support fixture. It uses multiple adjustable limiting blocks as clamping components, which can be adjusted according to the position of the clamping fixture and the shape of the support fixture to provide a stable clamping effect.

[0032] Furthermore, such as Figure 2 , Figure 3 As shown, the air outlet of the support fixture is located on the top surface of the support fixture, and the air inlet of the workpiece to be tested is located on the bottom surface of the workpiece to be tested. The outer side of the air outlet of the support fixture 310 is provided with a limiting groove 312 that matches the bottom shape of the workpiece to be tested 400. The bottom of the workpiece to be tested is appropriately placed in the limiting groove, so that the two are internally connected, which can facilitate alignment and prevent deviation. A sealing gasket 313 is provided at the connection between the workpiece to be tested 400 and the support fixture 310. The clamping fixture is used to clamp the workpiece to be tested, and the sealing gasket is squeezed and deformed to seal the connection. This structure limits the direction of the force applied by the clamping fixture to push the workpiece to be tested towards the support fixture, and the sealing gasket strengthens the seal at the connection to prevent air leakage or venting from affecting the accuracy of the inspection.

[0033] Furthermore, such as Figure 1 As shown, the airflow monitoring structure 200 includes a flow valve 210, a pressure gauge 220, a flow meter 230, and a thermometer 240 installed sequentially on a delivery pipe 250. The input end of the delivery pipe is connected to external compressed gas. The output end of the delivery pipe 250 is connected to a gas delivery hose 260, and the end of the gas delivery hose 260 is equipped with a pipe connector 270 that matches the air inlet of the support fixture. The pressure gauge, flow meter, and thermometer detect and display relevant data of the airflow. By adjusting the flow valve, the flow rate is controlled, so that the overall detection is in a controllable state. According to different workpieces to be tested, corresponding adjustments can be made to further expand the scope of application.

[0034] It should be noted that flow valves, pressure gauges, flow meters, and thermometers are all common airflow monitoring instruments. Their connection methods and corresponding layouts with pipelines are also quite common and well known to those skilled in the art, so they will not be elaborated on in detail.

[0035] Furthermore, the workbench panel has an opening, and a support frame is provided below the opening, which is fixed to the bottom surface of the panel; the main component of the airflow monitoring structure is placed on the support frame, and the control and display components of the airflow monitoring structure extend out of the top of the opening and are located above the top surface of the panel; a cover is installed at the opening, and the cover includes two spliced ​​and assembled cover plates; a latch is provided on one side of the spliced ​​part of the cover plates, and the latches of the two cover plates are correspondingly set to form multiple holes for the components to pass through;

[0036] Furthermore, the delivery pipe is connected to the pressure gauge and thermometer via branch pipes, and the pressure gauge and thermometer are installed on the branch pipes. The provided holes are mainly for the installation of monitoring instruments, such as the flow valve adjustment rod, the flow meter display screen, and the branch pipes for installing the pressure gauge and thermometer. All of these pass through the corresponding holes, so that the slotted components and display components are located above the panel, which facilitates data viewing and corresponding operation and control. The main body and pipeline below are covered by the cover to maintain the overall aesthetics.

[0037] Furthermore, a recessed groove is provided on the top outer side of the opening to provide a support for the installation of the cover, preventing the cover from falling off; the two cover plates are a separate structure, and the two cover plates are connected by snaps or magnetic attraction to maintain the required connection and meet the blocking effect of the opening, preventing other loose parts from falling from the opening, and not affecting the disassembly and assembly of other structural components.

[0038] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A gas flow rate testing device, characterized in that: This includes an airflow monitoring structure and a clamping structure mounted on the workbench; The clamping structure is used to provide a support fixture for the workpiece to be tested and to clamp and fix it. The support fixture is connected to the workpiece to be tested. The support fixture is provided with an air inlet hole, which is used to connect with the output end of the airflow monitoring structure. The external airflow enters the support fixture after passing through the airflow monitoring structure and is delivered to the workpiece to be tested.

2. The gas flow rate testing device according to claim 1, characterized in that: The clamping structure includes a support plate, and a clamping assembly is mounted on the top surface of the support plate. The clamping assembly is used to position and limit the bottom of the support fixture. A vertical pole is installed on the top surface of the support plate, and a cantilever is installed on the vertical pole. The cantilever extends to one side above the center of the support plate, and a clamping fixture is installed at the end of the cantilever. The clamping fixture is used to clamp and fix the workpiece to be tested placed on the support fixture.

3. The gas flow rate testing device according to claim 2, characterized in that: The top surface of the support plate is provided with multiple first threaded holes arranged in a rectangular array. The bottom of the upright and the clamping assembly are fixed to the top surface of the support plate by bolts. The upright has multiple through holes that penetrate the two opposite side walls. The through holes are arranged in groups of one or two and are evenly spaced along the length of the upright. The cantilever is fixed to the upright by bolts that pass through the through holes.

4. The gas flow rate testing device according to claim 3, characterized in that: The clamping assembly includes at least three limiting blocks, which are L-shaped. The horizontal part of the limiting block is provided with a strip hole extending along the length direction. The length of the strip hole is not less than the distance between two adjacent first threaded holes. The limiting block is fixed to the top surface of the support plate by bolts passing through the strip hole and the first threaded hole. The vertical parts of multiple limiting blocks form a clamping part that is adapted to the bottom of the support fixture.

5. A gas flow rate testing device according to claim 2, characterized in that: The air outlet of the support fixture is located on the top surface of the support fixture, and the air inlet of the workpiece to be tested is located on the bottom surface of the workpiece to be tested. The outer side of the air outlet of the support fixture is provided with a limiting groove that matches the shape of the bottom of the workpiece to be measured. The bottom of the workpiece to be measured is placed in the limiting groove so that the two are internally connected. A sealing gasket is provided at the connection between the workpiece to be tested and the supporting fixture; the clamping fixture is used to apply pressure to the workpiece to be tested, and the sealing gasket is squeezed and deformed to seal the connection.

6. The gas flow rate testing device according to claim 1, characterized in that: The airflow monitoring structure includes a flow valve, a pressure gauge, a flow meter, and a thermometer, which are installed sequentially on the delivery pipe. The inlet of the delivery pipe is connected to external compressed gas; The output end of the delivery pipe is connected to a gas delivery hose, and the end of the gas delivery hose is fitted with a pipe fitting that matches the air inlet of the support fixture.

7. A gas flow rate testing device according to claim 6, characterized in that: The workbench panel has an opening, and a support frame is located below the opening, which is fixed to the bottom surface of the panel. The main components of the airflow monitoring structure are placed on the support frame, and the control and display components of the airflow monitoring structure extend out of the top of the opening and are located above the top surface of the panel.

8. A gas flow rate testing device according to claim 7, characterized in that: A cover is installed at the opening, and the cover consists of two spliced ​​cover plates; a snap is provided on one side of the spliced ​​part of the cover plates, and the snaps of the two cover plates are set in correspondence to form multiple holes for the parts to pass through.

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