Wind speed verification wind tunnel for fluid monitoring

Abstract

The utility model discloses a wind speed verification wind tunnel for fluid monitoring in the technical field, which comprises a wind tunnel shell, a fluid cavity is arranged in the wind tunnel shell, two ends of the fluid cavity are arranged in a penetrating manner, a detection box is arranged at the top of the wind tunnel shell, and the interior of the detection box is hollow. The top, matched with the detection box in position, of the wind tunnel shell is provided with a penetrating connection groove in a penetrating mode. Through close cooperation of the filling block and the sealing block at the bottom of the detection box and the penetrating connection groove and the sealing groove at the top of the wind tunnel shell, high sealing performance between the detection box and the wind tunnel shell is realized, the air leakage phenomenon is effectively avoided, and the accuracy of wind speed detection is ensured. The detection box is detachably connected with the top of the wind tunnel housing through the connecting block, thereby facilitating the disassembly and installation, facilitating the regular maintenance and inspection, and guaranteeing the stability of the structure. Through the combination of the Hall sensor and the wind cup, the wind speed in the fluid cavity can be accurately detected in real time, and the precision and reliability of wind speed verification are improved.

Description

Technical Field

[0001] This utility model relates to the field of wind tunnel technology, specifically to a wind tunnel for fluid monitoring and wind speed calibration. Background Technology

[0002] In the process of detecting fluid wind speed, a wind tunnel is generally used. The fluid to be tested is injected into the wind tunnel for testing to measure the fluid wind speed value. For example, the patent application number 202220337972.X proposes a wind tunnel for fluid detection, which describes: "A wind tunnel for fluid detection includes a base plate 1, ... a through groove 16 is opened in the middle of the support plate 15, and a limiting slide rod 9 is fixed at each of the four corners of the top of the support plate 15. The limiting slide rod 9 is inserted into the inside of the rod groove 12. The rod groove 12 is opened in the inside of the cover plate 11. A handle 10 is fixed in the middle of the top of the cover plate 11, and a wind speed detector 13 is installed at the bottom of the cover plate 11."

[0003] In this patent, a slot is directly cut into the detection shell for installing the wind speed detector. However, during subsequent use, the wind speed detector relies solely on its own weight to seal the slot on the detection shell. As a result, when the wind tunnel is in use, air leakage occurs due to the gaps inside and the lack of sealing, making it impossible to accurately detect the wind speed. Utility Model Content

[0004] The purpose of this invention is to provide a wind tunnel for fluid monitoring and wind speed calibration, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wind tunnel for fluid monitoring and wind speed calibration, comprising a wind tunnel shell, a fluid cavity formed inside the wind tunnel shell, the fluid cavity being through-hole at both ends, a detection box provided at the top of the wind tunnel shell, the detection box being hollow inside, a through-connecting groove formed at the top of the wind tunnel shell where the detection box is positioned, a sealing groove formed on the inner wall of the through-connecting groove, a filling block fixedly connected to the bottom of the detection box, a sealing block fixedly connected to the outer wall of the filling block where the sealing groove is positioned, and connecting blocks fixedly connected to the bottom outer walls on both sides of the detection box, the detection box being detachably connected to the top of the wind tunnel shell via the connecting blocks.

[0006] As a further embodiment of this utility model: the outer diameter of the filling block matches the inner diameter of the through-connecting groove, and the outer diameter of the sealing block matches the inner diameter of the sealing groove.

[0007] As a further improvement of this utility model: a Hall sensor is fixedly connected inside the detection box, and the Hall sensor's rotating shaft is positioned at one end facing the wind tunnel shell.

[0008] As a further improvement of this utility model: a sealed bearing is fixedly connected to the bottom of the detection box, which is matched with the position of the Hall sensor shaft, and the Hall sensor shaft is rotatably connected to the bottom outer wall of the detection box through the sealed bearing.

[0009] As a further embodiment of this utility model: the rotating shaft of the Hall sensor passes through the detection box and is located on the top inner wall of the fluid cavity, and a wind cup is fixedly connected to the bottom end of the rotating shaft of the Hall sensor.

[0010] As a further improvement of this utility model: a fixing ring is fixedly connected to the outer wall of the wind tunnel shell, and a controller is fixedly connected to the outer wall of one side of the fixing ring.

[0011] Compared with existing technologies, the advantages of this invention are as follows: In this invention, the tight fit between the filling block and sealing block at the bottom of the detection box, and the through-connecting groove and sealing groove at the top of the wind tunnel shell, achieves high sealing between the detection box and the wind tunnel shell, effectively preventing air leakage and ensuring the accuracy of wind speed detection. The detection box is detachably connected to the top of the wind tunnel shell via the connecting block, facilitating disassembly and installation, and enabling regular maintenance and inspection, while ensuring structural stability. Utilizing the combination of a Hall sensor and a wind cup, the wind speed within the fluid cavity can be detected in real time and accurately, improving the accuracy and reliability of wind speed calibration. The controller on the fixed ring allows for convenient control and operation of the entire wind speed calibration wind tunnel, reducing operational difficulty and improving work efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of the wind tunnel for fluid monitoring and wind speed calibration of this utility model;

[0013] Figure 2 This is a schematic diagram of the separation structure of the detection box in the wind tunnel for fluid monitoring and wind speed calibration of this utility model;

[0014] Figure 3 This utility model provides a wind tunnel for fluid monitoring and wind speed calibration. Figure 3 Enlarged structural diagram at point A;

[0015] Figure 4 This is an enlarged schematic diagram of the wind cup structure in the wind tunnel for wind speed calibration of fluid monitoring according to this utility model.

[0016] In the diagram: 1. Wind tunnel shell; 2. Fluid cavity; 3. Detection box; 4. Fixing ring; 5. Controller; 6. Through-connection groove; 7. Sealing groove; 8. Filler block; 9. Sealing block; 10. Wind cup; 11. Hall sensor; 12. Sealed bearing. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0019] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "configuration" should be interpreted broadly. For example, they can refer to a fixed connection or configuration, a detachable connection or configuration, or an integral connection or configuration. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Please see Figures 1-4In this embodiment of the present invention, a wind tunnel for fluid monitoring and wind speed calibration includes a wind tunnel shell 1, with a fluid cavity 2 formed inside the wind tunnel shell 1, extending through both ends. A detection box 3 is disposed on the top of the wind tunnel shell 1, and the interior of the detection box 3 is hollow. A through-connection groove 6 is formed at the top of the wind tunnel shell 1, matching the position of the detection box 3, and a sealing groove 7 is formed on the inner wall of the through-connection groove 6. A filling block 8 is fixedly connected to the bottom of the detection box 3, and a sealing block 9 is fixedly connected to the outer wall of the filling block 8, matching the position of the sealing groove 7. The outer diameter of the filling block 8 matches the inner diameter of the through-connection groove 6, and the outer diameter of the sealing block 9 matches the inner diameter of the sealing groove 7, ensuring a tight seal between the detection box 3 and the wind tunnel shell 1.

[0022] A Hall sensor 11 is fixedly connected inside the detection box 3, with its rotating shaft facing one end of the wind tunnel housing 1. A sealed bearing 12 is fixedly connected to the bottom of the detection box 3, matching the position of the Hall sensor 11's rotating shaft. The rotating shaft of the Hall sensor 11 is rotatably connected to the bottom outer wall of the detection box 3 via the sealed bearing 12. After passing through the detection box 3, the rotating shaft of the Hall sensor 11 is positioned on the top inner wall of the fluid cavity 2, with a wind cup 10 fixedly connected to the bottom end of the Hall sensor 11's rotating shaft. When fluid flows within the fluid cavity, it causes the wind cup 10 to rotate, which in turn causes the rotating shaft of the Hall sensor 11 to rotate.

[0023] A fixing ring 4 is fixedly connected to the outer wall of the wind tunnel shell 1, and a controller 5 is fixedly connected to the outer wall on one side of the fixing ring 4. The controller 5 is used to receive the electrical signal output by the Hall sensor 11, process and analyze it, obtain the wind speed value of the fluid, and display the result on the display screen.

[0024] In practical use, the operator can inject the fluid to be tested into the fluid chamber 2 and then activate the controller 5 to detect the wind speed. The controller 5 will display the wind speed value in the fluid chamber in real time for the operator to view and record. When maintenance or inspection is required, the operator can easily disassemble the detection box 3 to perform necessary maintenance.

[0025] Preferably, in this embodiment, the sealing block 9 is made of rubber material.

[0026] The controller 5 includes a display screen and a microcontroller. Its signal input terminal is electrically connected to the signal output terminal of the Hall sensor 11, and the detection result is digitally displayed on the display screen. The microcontroller model is AT89C51. The Hall sensor 11 model is SS443A, SS441A, SS513AT, SS41, or SS495A.

[0027] The working principle of this invention is as follows: When using this device, simply fix the wind tunnel housing 1 to the detection position using the fixing ring 4. Inject the fluid to be detected into the fluid cavities opened at both ends of the wind tunnel housing. As the fluid flows within the fluid cavities 2, it drives the wind cup 10 to rotate. The wind cup 10 is fixedly connected to the rotating shaft of the Hall sensor 11, so the rotation of the wind cup 10 will drive the rotating shaft of the Hall sensor 11 to rotate. The Hall sensor 11 can sense the rotational speed and direction of the shaft and convert it into an electrical signal output. During detection, the through-connection groove 6 is sealed by the filling block 8 and the sealing block 9 in conjunction with the sealing groove 7 to ensure the integrity of the fluid cavity 2 and avoid inaccurate detection results due to gaps in the wind tunnel.

[0028] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0029] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A wind tunnel for fluid monitoring and wind speed calibration, comprising a wind tunnel shell (1), characterized in that: The wind tunnel shell (1) has a fluid cavity (2) inside, which is through at both ends. A detection box (3) is provided on the top of the wind tunnel shell (1). The detection box (3) is hollow inside. A through connecting groove (6) is provided on the top of the wind tunnel shell (1) that matches the position of the detection box (3). A sealing groove (7) is provided on the inner wall of the through connecting groove (6). A filling block (8) is fixedly connected to the bottom of the detection box (3). A sealing block (9) is fixedly connected to the outer wall of the filling block (8) that matches the position of the sealing groove (7). Connecting blocks are fixedly connected to the bottom outer walls on both sides of the detection box (3). The detection box (3) is detachably connected to the top of the wind tunnel shell (1) through the connecting blocks.

2. The wind tunnel for fluid monitoring and wind speed calibration according to claim 1, characterized in that: The outer diameter of the filling block (8) matches the inner diameter of the through connecting groove (6), and the outer diameter of the sealing block (9) matches the inner diameter of the sealing groove (7).

3. The wind tunnel for fluid monitoring and wind speed calibration according to claim 1, characterized in that: A Hall sensor (11) is fixedly connected inside the detection box (3), and the Hall sensor (11) is positioned with its rotating shaft facing one end of the wind tunnel shell (1).

4. The wind tunnel for fluid monitoring and wind speed calibration according to claim 3, characterized in that: The bottom of the detection box (3) is fixedly connected to a sealed bearing (12) that matches the position of the Hall sensor (11) shaft. The shaft of the Hall sensor (11) is rotatably connected to the bottom outer wall of the detection box (3) through the sealed bearing (12).

5. The wind tunnel for fluid monitoring and wind speed calibration according to claim 4, characterized in that: The rotating shaft of the Hall sensor (11) passes through the detection box (3) and is set on the top inner wall of the fluid cavity (2). The bottom end of the rotating shaft of the Hall sensor (11) is fixedly connected to the wind cup (10).

6. The wind tunnel for fluid monitoring and wind speed calibration according to claim 1, characterized in that: A fixing ring (4) is fixedly connected to the outer wall of the wind tunnel shell (1), and a controller (5) is fixedly connected to the outer wall on one side of the fixing ring (4).

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