Discontinuous one-way rotating fluid section ADCP (Acoustic Doppler Current Profiler) scanning flow measuring device

Abstract

The utility model relates to a discontinuous one-way rotating ADCP (Acoustic Doppler Current Profiler) scanning flow measuring device for a fluid section, and belongs to the technical field of water flow detection. According to the technical scheme, a floating traction cable, a scanning flow measurement sensor driving motor and a control module are arranged on a floating body, the control module is connected with the scanning flow measurement sensor driving motor, and the output end of the scanning flow measurement sensor driving motor is connected with a rotating shaft below the floating body; the floating traction cable is formed by extruding a waterproof floating material outside a cable core; two ends of the cable core are respectively connected with the control module and the power supply and control system; the floating traction cable floats on the water surface. The beneficial effects of the utility model are that the floating traction cable is adopted to prevent from hanging aquatic plants in water to influence the normal operation of the flow measurement sensor, and the scanning flow measurement sensor driving motor and the control module are arranged on the upper side of the floating body, thereby reducing the waterproof requirement, simplifying the structure, reducing the cost, improving the reliability of the device, reducing the maintenance amount, and improving the user experience.

Description

Technical Field

[0001] This utility model relates to a non-continuous unidirectional rotating fluid cross-section ADCP scanning flow measurement device, belonging to the field of water flow detection technology. Background Technology

[0002] Water supply networks require flow rate detection at cross-sectional areas. Rotating sonar is commonly used for this purpose. The sonar is positioned in the water, and its beam continuously rotates 360° in one direction within the cross-section, enabling comprehensive underwater environmental detection and imaging, and scanning for siltation and defects within the pipeline. Existing technologies have the following problems: the sensor needs to rotate continuously 360° in one direction within the cross-section; to prevent damage from tangling of the sensor cable, a conductive slip ring must be used for electrical connection. Furthermore, existing technologies require the sensor, conductive slip ring, drive motor, and control module to be sealed together with a protective rubber sleeve for waterproofing. The transmission and reception of the sensor's acoustic waves must pass through different media: a coupling agent (in which the sonar sensor, drive motor, conductive slip ring, and control module are all immersed), a waterproof protective rubber sleeve with minimal acoustic attenuation, and the detected wastewater. The disadvantages are its complex structure, the vulnerability of the protective rubber sleeve to damage due to continuous sensor rotation and friction, leading to coupling agent leakage, and irreparable damage once wastewater enters the protective rubber sleeve, increasing costs. Rotating sonars are expensive, with domestically produced ones costing over 70,000 yuan and imported ones costing over 96,000 yuan.

[0003] To address the aforementioned issues, the applicant filed a Chinese invention patent application entitled "A Fluid Cross-Section Scanning Device and Application Method," application number 202510545073.7. However, during application, it was discovered that: in river applications, the floating sensor became entangled with a large amount of floating aquatic plants on the water surface. These plants obstructed the rotation of the flow sensor, directly affecting the reliability of the device, increasing maintenance workload, and creating a very poor user experience. Furthermore, the drive mechanism and control module of this application are housed within a waterproof casing, resulting in a complex structure and increased manufacturing costs. Utility Model Content

[0004] The purpose of this invention is to provide a non-continuous unidirectional rotating fluid cross-section ADCP scanning flow measurement device. It adopts a floating traction cable to avoid snagging on aquatic plants in the water and affecting the normal operation of the flow measurement sensor. The scanning flow measurement sensor drive motor and control module are arranged on the upper side of the float, which reduces the waterproof requirements, thereby simplifying the structure, reducing costs, improving device reliability, reducing maintenance, improving user experience, and solving the above-mentioned technical problems existing in the prior art.

[0005] The technical solution of this utility model is:

[0006] A discontinuous unidirectional rotating fluid cross-section ADCP scanning flow measurement device includes an ADCP scanning flow measurement sensor, a rotating shaft, a fixed bushing, a float connecting bracket, and a float. The float connecting bracket is located at the lower part of the float, and the fixed bushing is mounted on the float connecting bracket. The rotating shaft is housed within the fixed bushing, and the ADCP scanning flow measurement sensor is mounted at the front end of the rotating shaft. A floating traction cable, a scanning flow measurement sensor drive motor, and a control module are mounted on top of the float. The control module is connected to the scanning flow measurement sensor drive motor, and the output end of the scanning flow measurement sensor drive motor is connected to the rotating shaft below the float. The floating traction cable is composed of a cable core extruded with waterproof floating material, and both ends of the cable core are connected to the control module and the power supply and control system, respectively. The floating traction cable floats on the water surface.

[0007] Furthermore, the floating traction cable is positioned at the foremost end of the float.

[0008] Furthermore, the waterproof floating material is a known and commonly used material, such as polyurethane foam or pearl cotton (polyethylene foam). The fabrication of the floating traction cable is a known and commonly used process.

[0009] Furthermore, the connection method between the output terminal of the scanning flow sensor drive motor and the rotating shaft includes at least the following two:

[0010] 1. The output end of the scanning flow sensor drive motor is connected to the rotating shaft via a bevel gear connecting shaft, a bevel transmission gear, and a drive shaft.

[0011] 2. The output end of the scanning flow sensor drive motor is connected to the rotating shaft via a flexible connecting shaft.

[0012] Furthermore, the ADCP scanning flow sensor is matched with the rotating shaft via a circular steel plate.

[0013] Furthermore, the ADCP scanning flow sensor includes an ADCP flow velocity sensor and a sonar sensor.

[0014] An Acoustic Doppler Current Profiler (ADCP) is a velocity sonar device developed by integrating multiple disciplines such as underwater acoustic physics, underwater acoustic transducer design, electronic technology and signal processing.

[0015] The ADCP scanning current sensor can rotate left and right by driving the scanning current sensor drive motor. The ADCP scanning current sensor is matched below the float and immersed in the water. The scanning current sensor drive motor and control module are matched above the float and above the water surface. The control module is responsible for controlling the driving motor of the scanning current sensor, collecting current sensor information and communication, and may also be involved in power supply (when the float itself is not equipped with a solar power supply system).

[0016] Furthermore, the ADCP scanning flow sensor also includes a Doppler scanning flow sensor.

[0017] Furthermore, the number of the aforementioned floats is at least one.

[0018] The "discontinuous unidirectional rotation" in this application is a technical feature of the existing technology "A fluid cross-section scanning device and application method", application number 202510545073.7.

[0019] The ADCP scanning flow sensor, scanning flow sensor drive motor, control module, float, floating traction cable, various mechanical transmission components, Doppler scanning flow sensor, etc. involved in this utility model are all technologies known and commonly used in this field.

[0020] The scanning flow sensor drive motor and control module of this utility model are set on a floating body on the water surface. The scanning flow sensor drive motor and control module do not need to be strictly waterproof and can use a common housing, which simplifies the structure of the device and reduces the cost.

[0021] Existing technologies for flow sensors in rivers often result in water plants getting caught on them. This is because a portion of the traction cable sinks into the water before reaching the sensor, trapping floating water plants. These plants then slide down the cable with the current to the front of the sensor. As long as the traction cable doesn't sink, only a very small amount of surface-dwelling debris might get caught briefly, but it will eventually be carried away by the current. This invention replaces the traction cable with a floating traction cable, allowing it to float on the water surface, thus solving the aforementioned problem.

[0022] The beneficial effects of this utility model are as follows: the use of a floating traction cable avoids snagging on aquatic plants in the water and affecting the normal operation of the flow sensor; the scanning flow sensor drive motor and control module are arranged on the upper side of the float, which reduces the waterproof requirements, thereby simplifying the structure, reducing costs, improving the reliability of the device, reducing maintenance, and improving the user experience. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0024] Figure 2This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0025] Figure 3 This is a schematic diagram of the floating traction cable structure of this utility model;

[0026] In the diagram: 1. ADCP scanning flow sensor; 2. Round steel plate; 3. Rotating shaft; 4. Fixed bushing; 5. Rotating shaft locking ring; 6. Float connecting bracket; 7. Drive shaft; 8. Scanning flow sensor drive motor; 9. Control module; 10. Float; 11. Floating traction cable; 12. Bevel gear; 13. Bevel gear connecting shaft; 14. Flexible connecting shaft; 15. ADCP flow velocity sensor; 16. Sonar sensor; 17. Cable core; 18. Waterproof floating material. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] See attached document Figures 1-3 A non-continuous unidirectional rotating fluid cross-section ADCP scanning flow measurement device includes an ADCP scanning flow measurement sensor 1, a rotating shaft 3, a fixed bushing 4, a float connecting bracket 6, and a float 10. The float connecting bracket 6 is installed at the lower part of the float 10, and the fixed bushing 4 is installed on the float connecting bracket 6. The rotating shaft 3 is installed inside the fixed bushing 4, and the ADCP scanning flow measurement sensor 1 is installed at the front end of the rotating shaft 3. A floating traction cable 11, a scanning flow measurement sensor drive motor 8, and a control module 9 are installed on the upper part of the float 10. The control module 9 is connected to the scanning flow measurement sensor drive motor 8, and the output end of the scanning flow measurement sensor drive motor 8 is connected to the rotating shaft 3 below the float 10. The floating traction cable 11 is composed of a cable core 17 extruded with a waterproof floating material 18. The two ends of the cable core are connected to the control module 9 and the power supply and control system, respectively. The floating traction cable 11 floats on the water surface.

[0029] Preferably, the floating traction cable 11 is located at the foremost end of the float 10.

[0030] In this embodiment, the waterproof floating material 18 is pearl cotton (polyethylene foam).

[0031] The connection between the output terminal of the scanning flow sensor drive motor 8 and the rotating shaft 3 includes at least two of the following methods:

[0032] See attached document Figure 1 In Example 1, the output end of the scanning flow sensor drive motor 8 is connected to the rotating shaft 3 via a bevel gear connecting shaft 13, a bevel transmission gear 12, and a drive shaft 7.

[0033] See attached document Figure 2In Example 2, the output end of the scanning flow sensor drive motor 8 is connected to the rotating shaft 3 via a flexible connecting shaft 14.

[0034] The ADCP scanning flow sensor 1 is matched with the rotating shaft 3 via a round steel plate 2.

[0035] The ADCP scanning flow sensor 1 includes an ADCP flow velocity sensor 15 and a sonar sensor 16.

[0036] An Acoustic Doppler Current Profiler (ADCP) is a velocity sonar device developed by integrating multiple disciplines such as underwater acoustic physics, underwater acoustic transducer design, electronic technology and signal processing.

[0037] The ADCP scanning flow sensor also includes a Doppler scanning flow sensor.

[0038] The number of the aforementioned floats is at least one.

[0039] ADCP scanning current sensor 1 can rotate left and right by being driven by scanning current sensor drive motor 8. ADCP scanning current sensor 1 is matched below the float 10 and immersed in water. Scanning current sensor drive motor 8 and control module 9 are matched above the float 10 and above the water surface. Control module 9 is responsible for controlling scanning current sensor drive motor 8, collecting current sensor information and communication, and may also be involved in power supply (when the float itself is not equipped with a solar power supply system).

Claims

1. A non-continuous unidirectional rotating fluid cross-section ADCP scanning flow measurement device, comprising an ADCP scanning flow measurement sensor (1), a rotating shaft (3), a fixed bushing (4), a float connecting bracket (6), and a float (10), wherein the float connecting bracket (6) is provided at the lower part of the float (10), the fixed bushing (4) is provided on the float connecting bracket (6), the rotating shaft (3) is provided inside the fixed bushing (4), and the ADCP scanning flow measurement sensor (1) is provided at the front end of the rotating shaft (3); characterized in that: The floating body (10) is provided with a floating traction cable (11), a scanning current sensor drive motor (8) and a control module (9). The control module (9) is connected to the scanning current sensor drive motor (8), and the output end of the scanning current sensor drive motor (8) is connected to the rotating shaft (3) below the floating body (10). The floating traction cable (11) is composed of a cable core (17) with waterproof floating material (18) extruded on it. The two ends of the cable core (17) are connected to the control module (9) and the power supply and control system, respectively. The floating traction cable (11) floats on the water surface.

2. The non-continuous unidirectional rotating fluid cross-section ADCP scanning flow measurement device according to claim 1, characterized in that: The floating traction cable (11) is fitted to the foremost end of the float (10).

3. A discontinuous unidirectional rotating fluid cross-section ADCP scanning flow measurement device according to claim 1 or 2, characterized in that: The output end of the scanning flow sensor drive motor (8) is connected to the rotating shaft (3) through the bevel gear connecting shaft (13), bevel transmission gear (12) and drive shaft (7).

4. A discontinuous unidirectional rotating fluid cross-section ADCP scanning flow measurement device according to claim 1 or 2, characterized in that: The output end of the scanning flow sensor drive motor (8) is connected to the rotating shaft (3) via a flexible connecting shaft (14).

5. The discontinuous unidirectional rotating fluid cross-section ADCP scanning flow measurement device according to claim 1, characterized in that: The ADCP scanning flow sensor (1) includes an ADCP flow velocity sensor (15) and a sonar sensor (16).

Images