Air flow measurement anti-blocking device

Abstract

The utility model discloses a kind of air volume measurement anti-blocking devices, including wind measuring tube and the flange plate of fixed installation in the both ends of wind measuring tube, the top end of wind measuring tube is fixedly installed with air volume sensor, the bottom of air volume sensor is fixedly installed with detection column, the detection column is fixedly penetrated and installed on wind measuring tube, the inside of wind measuring tube is fixedly installed with fixed ring, detection groove is opened in the fixed ring, the side of detection groove is provided with anti-blocking component. The utility model measures by detection column, the filter screen component of the side of detection groove can filter air duct, prevent the impurity in wind from causing influence to detection result, and by dismounting, the filter screen component on fixed ring can be dismounted, filter screen component component is cleaned periodically, by setting filter screen to prevent pipeline blockage, compared with the traditional air duct setting mode, the above-mentioned structure is good in anti-blocking performance, and detection error is smaller.

Description

Technical Field

[0001] This utility model relates to the field of air volume measurement technology, and in particular to an air volume measurement anti-blocking device. Background Technology

[0002] Airflow measurement devices are generally installed on ducts, with their probes inserted into the pipes. When airflow is flowing inside the pipe, the windward side is impacted by the airflow, where the kinetic energy of the airflow is converted into pressure energy. Therefore, the pressure inside the pipe on the windward side is higher, and this pressure is called "total pressure." On the leeward side, since it is not impacted by the airflow, the pressure inside the pipe is the static pressure, which is called "static pressure." The difference between total pressure and static pressure is called dynamic pressure, and its magnitude is related to the wind speed inside the pipe. The higher the wind speed, the higher the dynamic pressure; the lower the wind speed, the lower the dynamic pressure. Therefore, as long as the magnitude of the dynamic pressure is measured and the correspondence between dynamic pressure and wind speed is found, the wind speed inside the pipe can be accurately measured.

[0003] Patent document CN220525846U discloses an anti-clogging airflow measurement device, including a flange pipe and a wind speed sensor with a display mounted on the flange pipe. The detection end of the wind speed sensor extends into the flange pipe, and a hollow frame arranged symmetrically about the center of the detection end is provided inside the flange pipe. It also includes an air guide shroud and a rotatably mounted arch plate. The air guide shroud contacts the arch plate, and wave vanes arranged in a circular array on the arch plate are located within the port of the air guide shroud. This anti-clogging airflow measurement device provides that the airflow in the duct passes through the air guide shroud, thereby guiding the air to the wave vanes, thus keeping the arch plate rotating and preventing the air guide shroud from being blocked.

[0004] As in the prior art of the aforementioned patent, the duct is equipped with a guide hood to direct airflow to the wave vanes, thereby keeping the arch rotating and preventing the guide hood from being blocked. However, this method changes the airflow velocity and direction, altering both the airflow direction and velocity inside the duct. This results in a significant error compared to the actual airflow data to be measured. While this error is unavoidable, the error in this detection method is beyond reasonable limits in order to achieve anti-blocking. Utility Model Content

[0005] The purpose of this invention is to provide an airflow measurement anti-blocking device to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an airflow measurement anti-clogging device, comprising an airflow measuring tube and flanges fixedly installed at both ends of the airflow measuring tube, an airflow sensor fixedly installed at the top end of the airflow measuring tube, a detection column fixedly installed at the bottom end of the airflow sensor, the detection column being fixedly installed through the airflow measuring tube, a fixing ring fixedly installed inside the airflow measuring tube, a detection groove being provided on the fixing ring, an anti-clogging component being provided on one side of the detection groove, the anti-clogging component comprising a disassembly ring and a filter assembly provided on the disassembly ring.

[0007] As a further description of the above technical solution: the filter assembly includes two mounting rings, which are arranged opposite to each other and fixedly connected by a connector. A rotating shaft is rotatably mounted on the fixed ring, and one end of the rotating shaft is fixedly connected to the connector.

[0008] As a further description of the above technical solution: the filter assembly includes a disassembly ring, on which a second filter is fixedly installed. Each of the two disassembly rings has a threaded ring on one side, and the two disassembly rings are threadedly connected to the mounting ring through the threaded ring.

[0009] As a further description of the above technical solution: a motor is fixedly installed on the fixed ring, and the output end of the motor is connected to the rotating shaft for transmission.

[0010] As a further description of the above technical solution: two ventilation grooves are provided on the fixing ring, and the two ventilation grooves are arranged in a semi-circular shape on both sides of the connector.

[0011] As a further description of the above technical solution: a first filter screen is fixedly installed inside each of the two ventilation slots.

[0012] This invention provides an anti-clogging device for airflow measurement. It offers the following advantages: the airflow measuring tube is connected to the ductwork requiring airflow measurement via a flange. The flange size can be customized according to the ductwork size. Airflow from the duct enters the measuring tube through a detection slot and is measured by a detection column. A filter assembly on one side of the detection slot filters the airflow, preventing impurities in the air from affecting the measurement results. Furthermore, the filter assembly on the fixing ring can be disassembled for regular cleaning. By using a filter, duct blockage is prevented. Compared to traditional ductwork installation methods, this structure offers better anti-clogging performance and smaller measurement errors.

[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0014] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the air volume measurement anti-blocking device proposed in this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a three-dimensional exploded view of the internal structure of the wind measuring tube of this utility model;

[0018] Figure 4 This is a side view of the structure of this utility model;

[0019] Figure 5 This is a three-dimensional structural schematic diagram from another perspective of the present invention.

[0020] Legend:

[0021] 1. Air measuring tube; 2. Flange; 3. Fixing ring; 4. Ventilation slot; 5. First filter; 6. Connector; 7. Mounting ring; 8. Removal ring; 9. Second filter; 10. Detection column; 11. Air volume sensor; 12. Motor; 13. Detection slot; 14. Rotating shaft; 15. Threaded ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-5An anti-clogging device for airflow measurement includes an airflow measuring tube 1 and flanges 2 fixedly installed at both ends of the airflow measuring tube 1. An airflow sensor 11 is fixedly installed at the top of the airflow measuring tube 1, and a detection column 10 is fixedly installed at the bottom of the airflow sensor 11. The detection column 10 is fixedly installed through the airflow measuring tube 1. A fixing ring 3 is fixedly installed inside the airflow measuring tube 1. A detection groove 13 is formed on the fixing ring 3. An anti-clogging component is provided on one side of the detection groove 13. The anti-clogging component includes a disassembly ring 8 and a filter assembly disposed on the disassembly ring 8. The airflow sensor 11 and the detection column 10 are both prior art. Their function is to detect data such as airflow velocity and airflow through the detection column 10, and transmit the data through the airflow sensor. The sensor 11 displays the data and transmits it to the control terminal to detect the air volume. The air measuring tube 1 is connected to the air duct where the air volume needs to be detected via a flange. The size of the flange can be customized according to the size of the air duct. The air in the air duct enters the air measuring tube 1 through the detection slot 13 and is measured by the detection column 10. The filter assembly on one side of the detection slot 13 can filter the air duct to prevent impurities in the air from affecting the detection results. The filter assembly on the fixing ring 3 can be disassembled and cleaned regularly. By setting up the filter, the pipe is prevented from being blocked. Compared with the traditional air duct setting method, the above structure has better anti-blocking performance and smaller detection error.

[0024] As a preferred embodiment, the filter assembly includes two mounting rings 7, which are arranged opposite to each other and fixedly connected by a connector 6. A rotating shaft 14 is rotatably mounted on the fixing ring 3, and one end of the rotating shaft 14 is fixedly connected to the connector 6. The connector 6 can be rotated by the rotating shaft 14. When rotated 180 degrees, the disassembly ring 8, the mounting ring 7, and the filter at the other end of the connector 6 can be rotated to one side of the detection groove 13. The replaced filter can be disassembled and cleaned, which can achieve continuous anti-clogging of the air duct and avoid the inability to achieve continuous anti-clogging due to only setting a filter assembly.

[0025] As a preferred technical solution of this embodiment, the filter assembly includes a disassembly ring 8, on which a second filter 9 is fixedly installed. Each of the two disassembly rings 8 has a threaded ring 15 on one side, and the two disassembly rings 8 are threadedly connected to the mounting ring 7 through the threaded rings 15. By rotating and unscrewing the disassembly ring 8, the disassembly ring 8 and the second filter 9 can be disassembled from the mounting ring 7.

[0026] As a preferred technical solution in this embodiment, a motor 12 is fixedly installed on the fixing ring 3, and the output end of the motor 12 is connected to the rotating shaft 14 for transmission. The rotating shaft 14 can be rotated by the motor 12. The motor 12 is a self-locking motor 12. When it is not running, the output shaft of the motor 12 cannot rotate on its own, thereby locking the connecting piece 6. The motor 12 is connected to the external control system. When it is necessary to clean the filter assembly of the detection tank 13, by controlling the motor 12 to rotate 180 degrees, the clean filter assembly below can be rotated and moved to the position of the detection tank 13 above.

[0027] As a preferred technical solution in this embodiment, two ventilation grooves 4 are provided on the fixing ring 3, and the two ventilation grooves 4 are arranged in a semi-circular shape on both sides of the connector 6; the opening of the ventilation grooves 4 can avoid the setting of the fixing ring 3 from affecting the normal ventilation of the ventilation duct.

[0028] As a preferred technical solution in this embodiment, a first filter screen 5 is fixedly installed inside both ventilation slots 4; the first filter screen 5 can filter the airflow of the ventilation slot 4. In order to keep the ventilation slot 4 unobstructed, it needs to be cleaned regularly, but this problem is not the actual problem that this utility model is trying to solve, so it will not be described in detail.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An airflow measurement anti-clogging device, comprising, characterized in that, The device includes an air measuring tube (1) and flanges (2) fixedly installed at both ends of the air measuring tube (1). An air volume sensor (11) is fixedly installed at the top end of the air measuring tube (1), and a detection column (10) is fixedly installed at the bottom end of the air volume sensor (11). The detection column (10) is fixedly installed through the air measuring tube (1). A fixing ring (3) is fixedly installed inside the air measuring tube (1). A detection groove (13) is opened on the fixing ring (3). An anti-clogging component is provided on one side of the detection groove (13). The anti-clogging component includes a disassembly ring (8) and a filter assembly provided on the disassembly ring (8).

2. The airflow measurement anti-clogging device according to claim 1, characterized in that, The filter assembly includes two mounting rings (7), which are arranged opposite to each other and are fixedly connected to each other by a connector (6). A rotating shaft (14) is rotatably mounted on the fixing ring (3), and one end of the rotating shaft (14) is fixedly connected to the connector (6).

3. The airflow measurement anti-clogging device according to claim 1, characterized in that, The filter assembly includes a disassembly ring (8), on which a second filter (9) is fixedly installed. Each of the two disassembly rings (8) has a threaded ring (15) on one side, and the two disassembly rings (8) are threadedly connected to the mounting ring (7) through the threaded ring (15).

4. The airflow measurement anti-clogging device according to claim 1, characterized in that, A motor (12) is fixedly installed on the fixed ring (3), and the output end of the motor (12) is connected to the rotating shaft (14) for transmission.

5. The airflow measurement anti-clogging device according to claim 1, characterized in that, Two ventilation slots (4) are provided on the fixing ring (3), and the two ventilation slots (4) are arranged in a semi-circular shape on both sides of the connector (6).

6. The airflow measurement anti-clogging device according to claim 5, characterized in that, The first filter screen (5) is fixedly installed inside both ventilation slots (4).

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