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Ultrasonic device for removing plug matter in pipeline through phase-control deflection focusing and control method

A control method and technology for embolism, applied in liquid cleaning methods, cleaning methods and utensils, chemical instruments and methods, etc., can solve problems such as low crushing efficiency and difficulty in meeting the deflection requirements of sound beams, and achieve optimal results

Active Publication Date: 2021-12-03
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some deficiencies in the current methods of ultrasonic removal of emboli in pipelines: first, the dredging ultrasound is mostly a single probe, which is difficult to meet the deflection requirements of the sound beam in different situations; second, the ultrasound acts vertically on the emboli in the pipeline , low crushing efficiency

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  • Ultrasonic device for removing plug matter in pipeline through phase-control deflection focusing and control method
  • Ultrasonic device for removing plug matter in pipeline through phase-control deflection focusing and control method
  • Ultrasonic device for removing plug matter in pipeline through phase-control deflection focusing and control method

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] figure 1 Taking the initial angle between the probe and the pipeline to be dredged as 0° as an example, the ultrasonic transducer array is close to the boundary surface of the pipeline wrap, coated with couplant in the middle, and driven by the ultrasonic host. The transducer array is a linear array with a total of N array elements. The width of each array element is L, and the interval between adjacent array elements is dL. The transducer array can realize sound beam deflection by adjusting the phase. When in use, set the focus focal length and sound beam deflection angle according to the images and measured data observed by other imaging equipment, so as to achieve a better effect of removing embolism in buried pipelines.

[0033] Such as figure 2 As shown, the present invention includes an ultrasonic mainframe and an ultrasonic t...

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Abstract

The invention discloses an ultrasonic device for removing plug matter in a pipeline through phase-controlled deflection focusing and a control method. The ultrasonic device comprises an ultrasonic main machine for controlling emission and an ultrasonic transducer array, the ultrasonic transducer array is used for electro-acoustic signal conversion and can emit acoustic beams with different deflection angles according to different signal phases, and the ultrasonic main machine is used for driving the ultrasonic transducer array to complete transmission of dredging ultrasound; and according to the control method, the size of the dynamic aperture is calculated according to the set deflection angle, then phase-control deflection focusing is achieved, the dissolution effect of a flow field formed above the plug matter and shear force caused by flowing on the plug matter can be enhanced, and the effect of stably and well removing the plug matte in the pipeline is achieved.

Description

technical field [0001] The invention relates to an ultrasonic device and a control method for removing embolism in a pipeline by phase-controlled deflection focusing, and belongs to the technical field of industrial ultrasonic equipment. Background technique [0002] Ultrasound is a mechanical vibration with a vibration frequency exceeding 20,000 Hz. It has good directionality and concentrated sound energy. It is generally generated by an ultrasonic transducer and can propagate in solids, liquids, and gases. Ultrasound has broad application prospects in industrial and medical fields, such as ultrasonic welding, ultrasonic imaging, etc. Combining multiple independent transducers into an array can form an ultrasonic phased array, and excite each chip unit according to a certain regular amplitude and timing to achieve ultrasonic focusing and change the focus position and focus direction. [0003] The pipe is a common liquid conveying device, and its interior should have a smoo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B3/12B08B13/00
CPCB08B3/12B08B13/00
Inventor 屠娟薛洪惠章东张琪郭霞生
Owner NANJING UNIV