Simulation flue wind tunnel device

Abstract

The utility model relates to the field of aerodynamics, and discloses a flue wind tunnel simulation device which comprises a steel frame, a voltage stabilizer is arranged on the lower layer of the steel frame, a frequency converter is arranged on the inner side of the steel frame, a wind cavity is formed in the upper end of the steel frame and comprises an air outlet pipe, and the air outlet pipe is arranged at the front end of the wind cavity. The air cavity further comprises an air outlet chamber, the air outlet chamber is arranged at the rear end of the air cavity, a fan is arranged in the air outlet chamber, a connecting hole is formed in the front end of an air outlet pipe, a flow guide pipe is fixedly connected to the inner wall of the connecting hole, and a hose is fixedly connected to the end, away from the connecting hole, of the flow guide pipe. According to the utility model, the air outlet pipe, the connecting hole, the flow guide pipe and the hose are matched for use, and the fan can generate a variable rotating speed through the voltage stabilizer and the frequency converter, so that the air outlet pipe, the flow guide pipe, the hose and the like are designed to generate stable airflow, and the basic requirements of testing, namely consistency and high precision, are ensured.

Description

Technical Field

[0001] The utility model relates to the field of aerodynamics, in particular to a flue simulating wind tunnel device. Background Art

[0002] A flow meter is an instrument used to measure the flow rate of a fluid in a pipe, river, channel, etc. It uses sensor technology to accurately sense the velocity of the fluid, thereby helping researchers or engineers understand the motion state of the fluid and perform flow calculations, fluid dynamics analysis, or other related research.

[0003] At present, when conducting experiments on simulated flue wind tunnel devices, it is often necessary to use a flow meter to simulate and study the airflow movement in the actual flue.

[0004] Current flow meters often require calibration and aging during production. Previous calibration methods were not precise enough to provide stable and adjustable gas. In addition, large equipment was difficult for factory testers to operate, had high daily maintenance costs, and was expensive. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a flue wind tunnel device simulating the flue, aiming to improve the problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a simulated flue wind tunnel device, including a steel frame, a voltage stabilizer is arranged at the lower layer of the steel frame, a frequency converter is arranged on the inner side of the steel frame, a wind cavity is arranged at the upper end of the steel frame, the wind cavity includes an air outlet pipe, the air outlet pipe is arranged at the front end of the wind cavity, the wind cavity also includes an air outlet chamber, the air outlet chamber is arranged at the rear end of the wind cavity, a fan is arranged inside the air outlet chamber, a connecting hole is opened at the front end of the air outlet pipe, a guide pipe is fixedly connected to the inner wall of the connecting hole, a hose is fixedly connected to the end of the guide pipe away from the connecting hole, and a touch screen is arranged at the top of the steel frame.

[0007] As a further description of the above technical solution: the outer wall of the frequency converter is connected to the inner layer of the steel frame by a cable tie, and the material of the cable tie is set to plastic.

[0008] As a further description of the above technical solution: the air cavity is connected to the upper end of the steel frame via a screw rod, and the screw rod passes through a mounting plate arranged on the outer wall of the air cavity and is threadedly connected to the inner wall of the steel frame.

[0009] As a further description of the above technical solution: the number of the steel frames is set to multiple groups, and the bottom ends of the multiple groups of steel frames are in the same plane.

[0010] As a further description of the above technical solution: the model of the inverter is EV, and the inverter is electrically connected to the voltage stabilizer through a wire.

[0011] As a further description of the above technical solution: the size of the connecting hole matches the size of the outer wall of the guide tube.

[0012] As a further description of the above technical solution: the wind cavity is a columnar structure as a whole, and the top height of the different steel frames matches the bottom height of the corresponding wind cavity when it is in a horizontal state.

[0013] As a further description of the above technical solution: the frequency converter and the touch screen are provided with connection terminals, and the frequency converter and the touch screen are electrically connected through a wire.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the air outlet duct, the connecting hole, the guide pipe and the hose are used in coordination, and the fan can produce a variable speed through the voltage stabilizer and the frequency converter. The air outlet duct and the guide pipe hose are designed to produce a stable airflow, thereby ensuring the basic requirements of the test, namely consistency and high precision.

[0016] 2. In the utility model, the setting of the touch screen enables the staff to control the inverter through the touch screen to achieve the effect of adjusting the fan speed, and the setting of the wiring terminals enables the touch screen and the transformer to be easily separated for separate maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the overall structure of the utility model;

[0019] Figure 3 It is a partial cross-sectional schematic diagram of the three-dimensional structure of the air outlet duct, the flow guide duct and the hose in the utility model.

[0020] Legend:

[0021] 1. Steel frame; 2. Voltage stabilizer; 3. Frequency converter; 4. Cable tie; 5. Air cavity; 51. Air outlet duct; 52. Air outlet chamber; 6. Screw; 7. Connection hole; 8. Flow guide duct; 9. Hose; 10. Touch screen; 11. Fan. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1 and Figure 2 The utility model provides an embodiment: a simulated flue wind tunnel device, including a steel frame 1, the number of steel frames 1 is set to multiple groups, and the bottom ends of the multiple groups of steel frames 1 are in the same plane, and the position setting of the bottom end of the steel frame 1 ensures that the steel frame 1 can be fixed on the same horizontal plane, and a voltage stabilizer 2 is arranged on the lower layer of the steel frame 1. Through the setting of the voltage stabilizer 2, the voltage stability during the operation of the equipment is ensured, and a frequency converter 3 is arranged on the inner side of the steel frame 1. The model of the frequency converter 3 is EV4300. The frequency converter 3 is electrically connected to the voltage stabilizer 2 through a wire, and the outer wall of the frequency converter 3 is connected to the inner layer of the steel frame 1 through a cable tie 4. The material of the cable tie 4 is plastic. Through the setting of the cable tie 4, it is ensured that the position of the frequency converter 3 is not easily changed after the cable tie 4 is fixed when the cable tie 4 is not damaged, and when the frequency converter 3 needs to be maintained, it only needs to replace a new cable tie 4, which is simple to operate and low in cost.

[0024] Reference Figure 1 - Figure 3 The upper end of the steel frame 1 is provided with an air cavity 5, and the air cavity 5 is connected to the upper end of the steel frame 1 by a screw 6. The material of the screw 6 is set to metal, and the screw 6 passes through the mounting plate set on the outer wall of the air cavity 5 and is threadedly connected to the inner wall of the steel frame 1. The air cavity 5 is a columnar structure as a whole. The top heights of different steel frames 1 match the bottom heights of the corresponding air cavity 5 after being in a horizontal state. By setting the number of steel frames 1, it is ensured that different positions of the air cavity 5 can be supported and the fixing effect of the air cavity 5 is ensured. By the top height of the steel frame 1, it is ensured that when the air cavity 5 is installed, the air cavity 5 is in a horizontal state. The air cavity 5 includes an air outlet pipe 51, and the air outlet pipe 51 is arranged at the front end of the air cavity 5. The air cavity 5 also includes an air outlet chamber 52, and the outlet The wind chamber 52 is arranged at the rear end of the wind cavity 5, and a fan 11 is arranged inside the air outlet chamber 52. Through the arrangement of the fan 11, wind is generated in the air outlet chamber 52 and transmitted through the air outlet pipe 51. A connecting hole 7 is opened at the front end of the air outlet pipe 51. The inner wall of the connecting hole 7 is fixedly connected with a guide pipe 8. The size of the connecting hole 7 matches the size of the outer wall of the guide pipe 8. The end of the guide pipe 8 away from the connecting hole 7 is fixedly connected with a hose 9. A touch screen 10 is arranged on the top of the steel frame 1. Wiring terminals are arranged on the inverter 3 and the touch screen 10. The inverter 3 and the touch screen 10 are electrically connected through wires. The connection relationship between the inverter 3 and the touch screen 10 is arranged to ensure that the staff can control the inverter 3 through the touch screen 10.

[0025] Working principle: When in use, the staff first connects the inverter 3 to the voltage stabilizer 2 and the touch screen 10 respectively through wires, and then controls the inverter 3 by controlling the touch screen 10, so that the fan 11 can maintain stable air output under the control of the voltage stabilizer 2, and at the same time can adjust the speed under the control of the inverter 3, thereby providing protection for the experiment.

[0026] When the fan 11 is started, the wind generated by the fan 11 enters the air outlet pipe 51 through the air outlet chamber 52 and enters the hose 9 through the guide pipe 8, so that the staff can obtain a stable variable airflow through the hose 9 to start the experiment.

[0027] When the touch screen 10 needs to be maintained, the staff only needs to remove the wiring terminals connected to the touch screen 10 to remove the touch screen 10 for maintenance. When the inverter 3 needs to be maintained, the staff only needs to cut off the existing cable ties 4 and remove the wiring terminals connected to other devices to maintain the inverter 3.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flue wind tunnel device, comprising a steel frame (1), characterized in that: A voltage stabilizer (2) is arranged at the lower layer of the steel frame (1), a frequency converter (3) is arranged on the inner side of the steel frame (1), an air cavity (5) is arranged at the upper end of the steel frame (1), the air cavity (5) comprises an air outlet pipe (51), the air outlet pipe (51) is arranged at the front end of the air cavity (5), the air cavity (5) further comprises an air outlet chamber (52), the air outlet chamber (52) is arranged at the rear end of the air cavity (5), a fan (11) is arranged inside the air outlet chamber (52), a connection hole (7) is opened at the front end of the air outlet pipe (51), a guide pipe (8) is fixedly connected to the inner wall of the connection hole (7), a hose (9) is fixedly connected to the end of the guide pipe (8) away from the connection hole (7), and a touch screen (10) is arranged at the top end of the steel frame (1).

2. A flue wind tunnel device according to claim 1, characterized in that: The outer wall of the frequency converter (3) is connected to the inner layer of the steel frame (1) via a cable tie (4), and the material of the cable tie (4) is set to be plastic.

3. The flue wind tunnel device according to claim 1, characterized in that: The air cavity (5) is connected to the upper end of the steel frame (1) via a screw (6); the screw (6) passes through a mounting plate provided on the outer wall of the air cavity (5) and is threadedly connected to the inner wall of the steel frame (1).

4. The flue wind tunnel device according to claim 1, characterized in that: The number of the steel frames (1) is set to be multiple groups, and the bottom ends of the multiple groups of steel frames (1) are located in the same plane.

5. The flue wind tunnel device according to claim 1, characterized in that: The model of the frequency converter (3) is EV4300, and the frequency converter (3) is electrically connected to the voltage stabilizer (2) via a wire.

6. The flue wind tunnel device according to claim 1, characterized in that: The size of the connecting hole (7) matches the size of the outer wall of the flow guide tube (8).

7. The flue wind tunnel device according to claim 1, characterized in that: The wind cavity (5) is a columnar structure as a whole, and the top height of each of the steel frames (1) matches the bottom height of the corresponding wind cavity (5) when it is in a horizontal state.

8. The flue wind tunnel device according to claim 1, characterized in that: The frequency converter (3) and the touch screen (10) are provided with connection terminals, and the frequency converter (3) and the touch screen (10) are electrically connected via a wire.

Images