Sound emission detection sensor fixing device

Abstract

The invention discloses a sound emission detection sensor fixing device which comprises a main body, whose first surface is provided with a main body cavity and two accommodating cavities; a spring and a spring seat mounted in the main body cavity, with one end of the spring connected to the bottom of the main body cavity and the other end connected with the spring seat. Each accommodating cavity is fixed with a magnet and two metal pieces are respectively attached to the two faces of the magnet, wherein the distance between a first end face of each metal piece and the bottom of the accommodating cavity is longer than that between a second end face of the magnet and the bottom of the accommodating cavity, so that the main body is fixed on the surface of a tank wall via the first end faces of the four metal piece. As the spring seat transfers the pressure of the spring, a sensor is pressed against the surface of the tank wall by an even force. The fixing device of the invention solves the technical problem that the sensor is installed and fixed by using a magnetic holder in the prior art so that adaptability to the tank wall is poor, the magnetic force is either too large or too small, and the force applied to the sensor is uneven. The fixing device not only stabilizes the sensor, but facilitates the detachment of the fixing device.

Description

technical field [0001] The invention relates to the technical field of storage tank detection, in particular to an acoustic emission detection sensor fixing device. Background technique [0002] Acoustic emission detection is a dynamic detection method for judging internal damage through the stress wave emitted by the object itself. The research on the detection of storage tanks by acoustic emission detection technology began in the 1990s. According to statistics, the bottom plate of the storage tank is the most severely corroded area in the tank. In order to ensure the safe operation of the storage tank, many countries in the world currently enforce regular inspections of oil storage tanks in the form of laws. When using the traditional method of regular tank inspection, generally only 9% of the storage tanks have serious corrosion or leakage. The corrosion and leakage detection of storage tank bottom plate based on the principle of acoustic emission detection is an onlin...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a fixing device for the acoustic emission detection sensor, which solves the problem of poor adaptability to the tank wall, excessive or too small magnetic force, and stress on the sensor in the prior art when the sensor is installed and fixed by a magnetic card holder. uneven technical issues

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