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CN-224231029-U - Portable ultrasonic cross-correlation flowmeter transducer for three-dimensional flow field monitoring

CN224231029UCN 224231029 UCN224231029 UCN 224231029UCN-224231029-U

Abstract

The utility model relates to a portable ultrasonic cross-correlation flowmeter transducer for monitoring a three-dimensional flow field, which comprises a bracket component, wherein the bracket component comprises a front supporting leg and a rear supporting leg which are connected front and back, a connecting support A is arranged at the root of the front supporting leg, a connecting support B is arranged at the root of the rear supporting leg, a plurality of side sensors A are arranged on the side wall surface A of the front supporting leg, and/or a plurality of side sensors B are arranged on the side wall surface B of the front supporting leg. The utility model has reasonable design, compact structure and convenient use.

Inventors

  • LENG JIQIANG
  • SONG FUCAI
  • ZHANG KAIBO
  • LIU WEIKUN
  • ZHOU GUANGFEI

Assignees

  • 青岛清万水技术有限公司

Dates

Publication Date
20260512
Application Date
20250721

Claims (10)

  1. 1. The portable ultrasonic cross-correlation flowmeter transducer for monitoring the three-dimensional flow field is characterized by comprising a bracket component (2); The bracket component (2) comprises a front supporting leg (7) and a rear supporting leg (8) which are connected front and back; The side wall surface A of the front leg (7) is provided with side sensors A (12) and/or the side wall surface B is provided with side sensors B (13).
  2. 2. The portable ultrasonic cross-correlation flowmeter transducer for three-dimensional flow field monitoring according to claim 1, wherein a connecting support A (6) is arranged at the root of a front supporting leg (7); The sensor A (12) and/or the sensor B (13) adopts ultrasonic cross-correlation flowmeter transducers; a connecting support B (11) is arranged at the root of the rear supporting leg (8); The front supporting leg (7) faces the water flow direction; A sensor C (20) facing downwards is arranged in the middle of the transverse connecting rod (9); A sensor D (21) facing upwards is arranged on the transverse connecting rod (9); the bracket component (2) is a herringbone frame, and the middle neutral gear (3) is arranged at the lower part of the bracket component (2).
  3. 3. The portable ultrasonic cross-correlation flowmeter transducer for three-dimensional flow field monitoring according to claim 2, wherein as a mounting scheme of the bracket component (2), one or a combination of the following schemes is adopted; scheme a) the bracket component (2) is arranged at the bottom of the channel (1); The scheme b) is that the bracket component (2) is inverted in the channel (1), and the root of the bracket component (2) is directly or indirectly arranged on the channel (1) through a bracket; Scheme c) the bracket component (2) is laterally and directly installed or indirectly installed on the slope of the channel (1) through a bracket.
  4. 4. A stereoscopic flow field monitoring portable ultrasonic cross-correlation flow meter transducer according to any of claims 1-3, wherein: a transverse connecting rod (9) is connected between the front supporting leg (7) and the rear supporting leg (8) to form an A-shaped structure; Four pins of the connecting support A (6) and the connecting support B (11) are respectively provided with a connecting through hole (15) for installing an expansion bolt; The connecting support A (6) and the connecting support B (11) are arranged at the bottom of the channel (1) through embedded expansion bolts; the inner side walls of the front supporting leg (7) and the rear supporting leg (8) are provided with connecting supports (10) for connecting the transverse connecting rods (9).
  5. 5. The portable ultrasonic cross-correlation flowmeter transducer for three-dimensional flow field monitoring according to claim 4, wherein a lateral front guide part (14) is arranged on the outer top surface of the front supporting leg (7); A host part (5) is arranged at the side part of the channel (1) and is used for connecting with the sensor.
  6. 6. The portable ultrasonic cross-correlation flow meter transducer of claim 1, wherein the lateral front guide (14) is streamlined or V-shaped or C-shaped.
  7. 7. The portable ultrasonic cross-correlation flowmeter transducer for three-dimensional flow field monitoring according to claim 3, wherein the connecting support A (6) and the connecting support B (11) are provided with an adjusting screw hole A (16) and an adjusting screw hole B (17) which are respectively positioned at two sides of the bracket component (2); an adjusting jackscrew (19) is arranged in the adjusting screw hole A (16) and the adjusting screw hole B (17).
  8. 8. The portable ultrasonic cross-correlation flowmeter transducer for three-dimensional flow field monitoring according to claim 7, wherein a process base plate (18) is arranged below the connecting support A (6) and the connecting support B (11); the process bottom plate (18) is connected with the connecting support A (6); the process bottom plate (18) is connected with the connecting support B (11); The process bottom plate (18) is connected with the bottom of the channel (1); the lower end of the adjusting jackscrew (19) is abutted against the upper surface of the process bottom plate (18).
  9. 9. The portable ultrasonic cross-correlation flowmeter transducer for three-dimensional flow field monitoring as set forth in claim 4, wherein the bracket assembly (2) and the process base plate (18) form a tripod.
  10. 10. The portable ultrasonic cross-correlation flowmeter transducer for three-dimensional flow field monitoring according to claim 4, wherein the width of the front supporting leg (7) is larger than a set value, so that when the front supporting leg (7) is changed from the side surface to the inner side wall, the water flow change is not influenced; A rear sloping plate (22) is arranged on the bottom surface of the rear supporting leg (8); a rear buckle cover body (23) is arranged on the rear sloping plate (22); A transverse coupling body (24) and an eccentric fixed shaft (25) are arranged at the top of the front supporting leg (7); A plurality of transverse perforations (26) and a plurality of eccentric perforations (27) are arranged on the rear buckle cover body (23); The transverse shaft body (24) and the eccentric fixed shaft (25) are respectively used for penetrating through corresponding transverse through holes (26) and eccentric through holes (27).

Description

Portable ultrasonic cross-correlation flowmeter transducer for three-dimensional flow field monitoring Technical Field The utility model relates to a portable ultrasonic cross-correlation flowmeter transducer for monitoring a three-dimensional flow field, which is particularly suitable for small-width open channels. Background The conventional cross-correlation flowmeter is a flow measurement technology based on signal correlation analysis and is widely applied to the fields of industry, environmental protection, energy sources and the like. The method is characterized in that the flow velocity and the flow rate are determined by detecting natural or artificially introduced disturbance (such as bubbles, particles, turbulence and the like) in fluid and calculating the time delay (transit time) of signals by utilizing a cross-correlation algorithm, and an ultrasonic cross-correlation technology is a technical method for calculating the flow velocity and the flow rate by comparing the similarity of upstream and downstream echo signals by utilizing flow velocity information carried by ultrasonic waves when the ultrasonic waves propagate in the fluid. The cross-correlation flowmeter has become an important technology in the flow measurement field by virtue of its high precision, anti-interference capability and wide applicability. With the development of algorithm optimization, sensor innovation and intelligence, the market application of the method is further expanded. The traditional ultrasonic cross-correlation flowmeter is mainly applied to liquid flow monitoring in the scenes of channels, pipelines or box culverts and the like. The core technology is that the reflection information of particles or bubbles in water is scanned by an ultrasonic sensor, and the actual flow velocity value can be directly obtained without calibration. The multiple redundant liquid level measurement scheme is adopted to ensure the data precision, and high-precision monitoring can be realized under the complex hydraulic condition. The technology implementation depends on the design of a cross-correlation instrument and a sensor, and the progress of microelectronic technology promotes the industrialization process of the instrument, and is applied to the fields of covering industry and environmental measurement, including complex scenes such as high-pollution liquid, gas flow and the like. The sensor (transducer) of the cross-correlation flowmeter currently used in the industry is designed as a single probe, only fluid data with the diameter of 2m can be effectively scanned, the sampling area is small, the flow velocity obtained by measurement is poor in representativeness, and measurement is inaccurate. The base type, side-mounted type and float type and portable mounting modes are basically adopted in the market. The device is characterized in that the base is arranged in the channel and is influenced by sediment and impurity siltation in water, so that the emission surface of the transducer is shielded along with sediment deposition, signals cannot be transmitted, flow measurement is free of data, the device is unstable in operation, the side-mounted device is arranged in the channel and is influenced by field conditions of different slopes such as trapezoid channels and rectangular channels, the device can normally operate only after professional technicians debug the angle of the emission surface of the transducer, the device is high in mounting cost and inconvenient to install, the float type mounting mode is high in investment cost and needs to be matched with a float device, and the device is convenient and fast to install but is only limited to measurement in a short time and cannot automatically operate for a long time. Disclosure of utility model The utility model aims to solve the technical problem of providing a portable ultrasonic cross-correlation flowmeter transducer for monitoring a three-dimensional flow field. The utility model relates to a portable ultrasonic cross-correlation flowmeter transducer for monitoring a three-dimensional flow field, which can conveniently install an ultrasonic cross-correlation flowmeter without the influence of professional technicians, and can accurately and stably measure the flow rate and flow of application scenes such as small open channels, irrigation area bucket channels, agricultural channels, capillary channels, reservoir water inlets, spillways, water resource water intake, urban drainage network and the like. The intelligent water conservancy informatization system provides a precise and stable data base plate for intelligent water conservancy informatization construction, and provides technical support for manager decision making and personnel safety and engineering safety. In order to solve the problems, the utility model adopts the following technical scheme: In order to realize convenient installation and measurement, the portable ultrasonic cross-correlation flowmeter