Ultrasonic detector based design method for water-logging probe water-spray coupling device

Abstract

The invention discloses an ultrasonic detector based design method for a water-logging probe water-spray coupling device. The method provided by the invnetion comprises the following steps of: step (1), measuring basic parameters of an ultrasonic probe including diameters and lengths of the front end, the middle end and the back end of a probe and frequency for emitting ultrasonic waves; step (2), determining parameters of a water inlet guide pipe, a fixing cover, a water mixing cavity shell, a flow guide ring, a water mixing cavity cover, the ultrasonic probe, a transition pipeline, a first pipeline, a second pipeline, a third pipeline and a fourth pipeline according to the basic parameters of the ultrasonic probe; and step (3), determining connecting and matching methods of the water inlet guide pipe, the fixing cover, the water mixing cavity shell, the flow guide ring, the water mixing cavity cover, the ultrasonic probe, the transition pipeline, the first pipeline, the second pipeline, the third pipeline and the fourth pipeline; establishing a three-dimensional model of a nozzle by a solidworks software and exporting a design paper. According to the invention, the method has the advantages of stable layer flow structure, simple nozzle, stable ultrasonic probe, economic and environmental-friendly performances.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic flaw detection, and in particular relates to a design method of a water spray coupling device based on a water immersion probe of an ultrasonic detector. Background technique [0002] Modern industrial production puts forward higher requirements on the quality of metal and other workpieces, which also promotes the development of workpiece flaw detection technology. Ultrasonic flaw detection has always been the mainstream method of workpiece flaw detection due to its advantages of simplicity, high efficiency, short flaw detection cycle, and low cost. And the water soaking probe detection derived on its basis is a technology in the ascendant. This technology uses water as the coupling medium to guide the sound waves emitted by the ultrasonic flaw detector into the detection workpiece, which greatly reduces the loss of ultrasonic energy, but puts forward higher requirements for the design of the ...

AI Technical Summary

Problems solved by technology

This technology uses water as the coupling medium to guide the sound waves emitted by the ultrasonic flaw detector into the detection workpiece, which greatly reduces the loss of ultrasonic energy, but puts forward higher requirements for the design of the water spray probe.

[0003] At present, most of the existing ultrasonic water spray coupling probes have a single structure, and only one type of ultrasonic probe can be assembled during work, and the sound waves of limited frequency are used to detect metal

Such a probe control is not flexible enough, it is difficult to meet the increasing requirements of metal flaw detection, and it cannot meet the requirements of energy saving and environmental protection

Among the ultrasonic probes that have come out so far, such as the "Shutter Type Water Spray Probe Device for Ultrasonic Thickness Measurement and Flaw Detection" invented in 200920278316.1 has the ability to automatically open the shutter to achieve a good water spray coupling thickness measurement task, but it does not have the flaw detection function , and it is impossible to adjust the shape of the nozzle according to the different detection materials; another example is the invention of the "transverse wave water spray probe" of 03219895.7, which can effectively improve the detection accuracy, but the structure design is relatively complicated, which is not conducive to assembly and disassembly and regular inspection

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